20157180532682 has 32 divisors (see below), whose sum is σ = 31211535859200. Its totient is φ = 9758461684608.

The previous prime is 20157180532651. The next prime is 20157180532703. The reversal of 20157180532682 is 28623508175102.

It is a super-2 number, since 2×20157180532682² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20157180532682.

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, 16484318 + ... + 17664854.

It is an arithmetic number, because the mean of its divisors is an integer number (975360495600).

Almost surely, 2^{20157180532682} is an apocalyptic number.

20157180532682 is a deficient number, since it is larger than the sum of its proper divisors (11054355326518).

20157180532682 is a wasteful number, since it uses less digits than its factorization.

20157180532682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182710.

The product of its (nonzero) digits is 1612800, while the sum is 50.

The spelling of 20157180532682 in words is "twenty trillion, one hundred fifty-seven billion, one hundred eighty million, five hundred thirty-two thousand, six hundred eighty-two".