65061378 has 24 divisors (see below), whose sum is σ = 141596208. Its totient is φ = 21590232.

The previous prime is 65061371. The next prime is 65061379. The reversal of 65061378 is 87316056.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65061371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3876 + ... + 12047.

It is an arithmetic number, because the mean of its divisors is an integer number (5899842).

Almost surely, 2^65061378 is an apocalyptic number.

65061378 is an abundant number, since it is smaller than the sum of its proper divisors (76534830).

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

65061378 is a wasteful number, since it uses less digits than its factorization.

65061378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16158 (or 16155 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 65061378 is about 8066.0633520944. The cubic root of 65061378 is about 402.1990919968.

The spelling of 65061378 in words is "sixty-five million, sixty-one thousand, three hundred seventy-eight".