64180080 has 160 divisors (see below), whose sum is σ = 226533120. Its totient is φ = 16692480.

The previous prime is 64180073. The next prime is 64180091. The reversal of 64180080 is 8008146.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92535 + ... + 93225.

It is an arithmetic number, because the mean of its divisors is an integer number (1415832).

Almost surely, 2^64180080 is an apocalyptic number.

64180080 is a gapful number since it is divisible by the number (60) 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 64180080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113266560).

64180080 is an abundant number, since it is smaller than the sum of its proper divisors (162353040).

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

64180080 is a wasteful number, since it uses less digits than its factorization.

64180080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756 (or 744 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 64180080 is about 8011.2470939299. The cubic root of 64180080 is about 400.3748153406.

The spelling of 64180080 in words is "sixty-four million, one hundred eighty thousand, eighty".