20957150837120 has 64 divisors (see below), whose sum is σ = 50101546904640. Its totient is φ = 8382716743680.

The previous prime is 20957150837093. The next prime is 20957150837131. The reversal of 20957150837120 is 2173805175902.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42114884 + ... + 42609596.

It is an arithmetic number, because the mean of its divisors is an integer number (782836670385).

Almost surely, 2^{20957150837120} is an apocalyptic number.

20957150837120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20957150837120 is an abundant number, since it is smaller than the sum of its proper divisors (29144396067520).

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

20957150837120 is an equidigital number, since it uses as much as digits as its factorization.

20957150837120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560923 (or 560911 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 50.

The spelling of 20957150837120 in words is "twenty trillion, nine hundred fifty-seven billion, one hundred fifty million, eight hundred thirty-seven thousand, one hundred twenty".