64156416 has 36 divisors (see below), whose sum is σ = 170751672. Its totient is φ = 21385216.

The previous prime is 64156357. The next prime is 64156441. The reversal of 64156416 is 61465146.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41001 + ... + 42536.

It is an arithmetic number, because the mean of its divisors is an integer number (4743102).

Almost surely, 2^64156416 is an apocalyptic number.

It is an amenable number.

64156416 is an abundant number, since it is smaller than the sum of its proper divisors (106595256).

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

64156416 is an equidigital number, since it uses as much as digits as its factorization.

64156416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83556 (or 83542 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 64156416 is about 8009.7700341520. The cubic root of 64156416 is about 400.3256015538.

The spelling of 64156416 in words is "sixty-four million, one hundred fifty-six thousand, four hundred sixteen".