2057318074656 has 120 divisors (see below), whose sum is σ = 6515939671164. Its totient is φ = 633020935680.

The previous prime is 2057318074649. The next prime is 2057318074657. The reversal of 2057318074656 is 6564708137502.

2057318074656 is a `hidden beast` number, since 2 + 0 + 573 + 1 + 8 + 0 + 7 + 4 + 65 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1508681584656 + 548636490000 = 1228284^2 + 740700^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (2057318074657) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 30493935 + ... + 30561326.

Almost surely, 2^{2057318074656} is an apocalyptic number.

2057318074656 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2057318074656 is an abundant number, since it is smaller than the sum of its proper divisors (4458621596508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2057318074656 is a wasteful number, since it uses less digits than its factorization.

2057318074656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61055296 (or 61055279 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 54.

The spelling of 2057318074656 in words is "two trillion, fifty-seven billion, three hundred eighteen million, seventy-four thousand, six hundred fifty-six".