72164036 has 12 divisors (see below), whose sum is σ = 144328128. Its totient is φ = 30927432.

The previous prime is 72164017. The next prime is 72164047. The reversal of 72164036 is 63046127.

72164036 is an admirable 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, 1288616 + ... + 1288671.

It is an arithmetic number, because the mean of its divisors is an integer number (12027344).

Almost surely, 2^72164036 is an apocalyptic number.

It is an amenable number.

72164036 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

72164036 is a wasteful number, since it uses less digits than its factorization.

72164036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2577298 (or 2577296 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 72164036 is about 8494.9417890884. The cubic root of 72164036 is about 416.3324589019.

The spelling of 72164036 in words is "seventy-two million, one hundred sixty-four thousand, thirty-six".