57061216616 has 8 divisors (see below), whose sum is σ = 106989781170. Its totient is φ = 28530608304.

The previous prime is 57061216607. The next prime is 57061216627. The reversal of 57061216616 is 61661216075.

It can be written as a sum of positive squares in only one way, i.e., 52996644100 + 4064572516 = 230210^2 + 63754^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3566326031 + ... + 3566326046.

Almost surely, 2^57061216616 is an apocalyptic number.

It is an amenable number.

57061216616 is a deficient number, since it is larger than the sum of its proper divisors (49928564554).

57061216616 is a wasteful number, since it uses less digits than its factorization.

57061216616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7132652083 (or 7132652079 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The spelling of 57061216616 in words is "fifty-seven billion, sixty-one million, two hundred sixteen thousand, six hundred sixteen".