64632156316 has 48 divisors (see below), whose sum is σ = 147396424896. Its totient is φ = 24064717824.

The previous prime is 64632156313. The next prime is 64632156389. The reversal of 64632156316 is 61365123646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64632156313) 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, 5216191 + ... + 5228566.

It is an arithmetic number, because the mean of its divisors is an integer number (3070758852).

Almost surely, 2^64632156316 is an apocalyptic number.

It is an amenable number.

64632156316 is an abundant number, since it is smaller than the sum of its proper divisors (82764268580).

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

64632156316 is a wasteful number, since it uses less digits than its factorization.

64632156316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10444798 (or 10444796 counting only the distinct ones).

The product of its digits is 466560, while the sum is 43.

The spelling of 64632156316 in words is "sixty-four billion, six hundred thirty-two million, one hundred fifty-six thousand, three hundred sixteen".