20385190890176 has 56 divisors (see below), whose sum is σ = 46988581172256. Its totient is φ = 8593288888320.

The previous prime is 20385190890151. The next prime is 20385190890209. The reversal of 20385190890176 is 67109809158302.

It is a tau number, because it is divible by the number of its divisors (56).

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, 372945281 + ... + 372999936.

Almost surely, 2^{20385190890176} is an apocalyptic number.

It is an amenable number.

20385190890176 is an abundant number, since it is smaller than the sum of its proper divisors (26603390282080).

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

20385190890176 is an equidigital number, since it uses as much as digits as its factorization.

20385190890176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745945297 (or 745945287 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 59.

The spelling of 20385190890176 in words is "twenty trillion, three hundred eighty-five billion, one hundred ninety million, eight hundred ninety thousand, one hundred seventy-six".