64157132004 has 48 divisors (see below), whose sum is σ = 172849477248. Its totient is φ = 18141631488.

The previous prime is 64157131999. The next prime is 64157132009. The reversal of 64157132004 is 40023175146.

It is an interprime number because it is at equal distance from previous prime (64157131999) and next prime (64157132009).

It is a super-2 number, since 2×64157132004² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64157132009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3928839 + ... + 3945134.

It is an arithmetic number, because the mean of its divisors is an integer number (3601030776).

Almost surely, 2^64157132004 is an apocalyptic number.

It is an amenable number.

64157132004 is an abundant number, since it is smaller than the sum of its proper divisors (108692345244).

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

64157132004 is a wasteful number, since it uses less digits than its factorization.

64157132004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7874084 (or 7874082 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The spelling of 64157132004 in words is "sixty-four billion, one hundred fifty-seven million, one hundred thirty-two thousand, four".