2157058808064 has 108 divisors (see below), whose sum is σ = 6489738230976. Its totient is φ = 687757863936.

The previous prime is 2157058808059. The next prime is 2157058808101. The reversal of 2157058808064 is 4608088507512.

2157058808064 is a `hidden beast` number, since 2 + 1 + 57 + 0 + 588 + 0 + 8 + 0 + 6 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2157058808064.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20299692 + ... + 20405675.

Almost surely, 2^{2157058808064} is an apocalyptic number.

2157058808064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2157058808064 is an abundant number, since it is smaller than the sum of its proper divisors (4332679422912).

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

2157058808064 is a wasteful number, since it uses less digits than its factorization.

2157058808064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40705412 (or 40705395 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 54.

The spelling of 2157058808064 in words is "two trillion, one hundred fifty-seven billion, fifty-eight million, eight hundred eight thousand, sixty-four".