20858038132056 has 32 divisors (see below), whose sum is σ = 52287180080640. Its totient is φ = 6933734743968.

The previous prime is 20858038132031. The next prime is 20858038132067. The reversal of 20858038132056 is 65023183085802.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1184030596 + ... + 1184048211.

It is an arithmetic number, because the mean of its divisors is an integer number (1633974377520).

Almost surely, 2^{20858038132056} is an apocalyptic number.

It is an amenable number.

20858038132056 is an abundant number, since it is smaller than the sum of its proper divisors (31429141948584).

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

20858038132056 is a wasteful number, since it uses less digits than its factorization.

20858038132056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2368079183 (or 2368079179 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 51.

The spelling of 20858038132056 in words is "twenty trillion, eight hundred fifty-eight billion, thirty-eight million, one hundred thirty-two thousand, fifty-six".