2157516152570 has 8 divisors (see below), whose sum is σ = 3883529074644. Its totient is φ = 863006461024.

The previous prime is 2157516152567. The next prime is 2157516152593. The reversal of 2157516152570 is 752516157512.

It can be written as a sum of positive squares in 2 ways, for example, as 1830038078521 + 327478074049 = 1352789^2 + 572257^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107875807619 + ... + 107875807638.

Almost surely, 2^{2157516152570} is an apocalyptic number.

2157516152570 is a deficient number, since it is larger than the sum of its proper divisors (1726012922074).

2157516152570 is a wasteful number, since it uses less digits than its factorization.

2157516152570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215751615264.

The product of its (nonzero) digits is 735000, while the sum is 47.

The spelling of 2157516152570 in words is "two trillion, one hundred fifty-seven billion, five hundred sixteen million, one hundred fifty-two thousand, five hundred seventy".