65218296 has 128 divisors (see below), whose sum is σ = 198051840. Its totient is φ = 17625600.

The previous prime is 65218291. The next prime is 65218301. The reversal of 65218296 is 69281256.

It is an interprime number because it is at equal distance from previous prime (65218291) and next prime (65218301).

It is a super-2 number, since 2×65218296² = 8506852266287232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65218291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106086 + ... + 106698.

It is an arithmetic number, because the mean of its divisors is an integer number (1547280).

Almost surely, 2^65218296 is an apocalyptic number.

65218296 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65218296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99025920).

65218296 is an abundant number, since it is smaller than the sum of its proper divisors (132833544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65218296 is a wasteful number, since it uses less digits than its factorization.

65218296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677 (or 673 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 65218296 is about 8075.7845439313. The cubic root of 65218296 is about 402.5221797636.

The spelling of 65218296 in words is "sixty-five million, two hundred eighteen thousand, two hundred ninety-six".