57216145736 has 16 divisors (see below), whose sum is σ = 107824846140. Its totient is φ = 28462853440.

The previous prime is 57216145703. The next prime is 57216145757. The reversal of 57216145736 is 63754161275.

It can be written as a sum of positive squares in 2 ways, for example, as 54480228100 + 2735917636 = 233410^2 + 52306^2 .

It is a super-3 number, since 3×57216145736³ (a number of 33 digits) contains 333 as substring.

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, 18150755 + ... + 18153906.

Almost surely, 2^57216145736 is an apocalyptic number.

It is an amenable number.

57216145736 is a deficient number, since it is larger than the sum of its proper divisors (50608700404).

57216145736 is a wasteful number, since it uses less digits than its factorization.

57216145736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36304864 (or 36304860 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 47.

The spelling of 57216145736 in words is "fifty-seven billion, two hundred sixteen million, one hundred forty-five thousand, seven hundred thirty-six".