57120605566155 has 24 divisors (see below), whose sum is σ = 99788648474112. Its totient is φ = 30224446406784.

The previous prime is 57120605566109. The next prime is 57120605566183. The reversal of 57120605566155 is 55166550602175.

57120605566155 is a `hidden beast` number, since 5 + 7 + 1 + 2 + 0 + 60 + 5 + 566 + 15 + 5 = 666.

It is not a de Polignac number, because 57120605566155 - 2⁶ = 57120605566091 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4997422594 + ... + 4997434023.

It is an arithmetic number, because the mean of its divisors is an integer number (4157860353088).

Almost surely, 2^{57120605566155} is an apocalyptic number.

57120605566155 is a deficient number, since it is larger than the sum of its proper divisors (42668042907957).

57120605566155 is a wasteful number, since it uses less digits than its factorization.

57120605566155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9994856755 (or 9994856752 counting only the distinct ones).

The product of its (nonzero) digits is 9450000, while the sum is 54.

The spelling of 57120605566155 in words is "fifty-seven trillion, one hundred twenty billion, six hundred five million, five hundred sixty-six thousand, one hundred fifty-five".