20158860316502 has 32 divisors (see below), whose sum is σ = 31763215701504. Its totient is φ = 9576966168000.

The previous prime is 20158860316499. The next prime is 20158860316519. The reversal of 20158860316502 is 20561306885102.

It is a super-2 number, since 2×20158860316502² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 260860073 + ... + 260937339.

It is an arithmetic number, because the mean of its divisors is an integer number (992600490672).

Almost surely, 2^{20158860316502} is an apocalyptic number.

20158860316502 is a deficient number, since it is larger than the sum of its proper divisors (11604355385002).

20158860316502 is a wasteful number, since it uses less digits than its factorization.

20158860316502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115004.

The product of its (nonzero) digits is 691200, while the sum is 47.

The spelling of 20158860316502 in words is "twenty trillion, one hundred fifty-eight billion, eight hundred sixty million, three hundred sixteen thousand, five hundred two".