57061565156 has 12 divisors (see below), whose sum is σ = 99860890668. Its totient is φ = 28529882112.

The previous prime is 57061565129. The next prime is 57061565161. The reversal of 57061565156 is 65156516075.

It can be written as a sum of positive squares in 2 ways, for example, as 47814819556 + 9246745600 = 218666^2 + 96160^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 57061565156.

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, 70781 + ... + 345156.

It is an arithmetic number, because the mean of its divisors is an integer number (8321740889).

Almost surely, 2^57061565156 is an apocalyptic number.

It is an amenable number.

57061565156 is a deficient number, since it is larger than the sum of its proper divisors (42799325512).

57061565156 is a wasteful number, since it uses less digits than its factorization.

57061565156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450238 (or 450236 counting only the distinct ones).

The product of its (nonzero) digits is 945000, while the sum is 47.

The spelling of 57061565156 in words is "fifty-seven billion, sixty-one million, five hundred sixty-five thousand, one hundred fifty-six".