57055720018 has 32 divisors (see below), whose sum is σ = 95344128000. Its totient is φ = 25388040720.

The previous prime is 57055719997. The next prime is 57055720031. The reversal of 57055720018 is 81002755075.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218263 + ... + 402181.

It is an arithmetic number, because the mean of its divisors is an integer number (2979504000).

Almost surely, 2^57055720018 is an apocalyptic number.

57055720018 is a deficient number, since it is larger than the sum of its proper divisors (38288407982).

57055720018 is a wasteful number, since it uses less digits than its factorization.

57055720018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184230.

The product of its (nonzero) digits is 98000, while the sum is 40.

The spelling of 57055720018 in words is "fifty-seven billion, fifty-five million, seven hundred twenty thousand, eighteen".