20385027940992 has 128 divisors (see below), whose sum is σ = 63614117085120. Its totient is φ = 5702105702400.

The previous prime is 20385027940987. The next prime is 20385027941017. The reversal of 20385027940992 is 29904972058302.

It is a tau number, because it is divible by the number of its divisors (128).

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, 185560509 + ... + 185670332.

Almost surely, 2^{20385027940992} is an apocalyptic number.

20385027940992 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20385027940992 is an abundant number, since it is smaller than the sum of its proper divisors (43229089144128).

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

20385027940992 is a wasteful number, since it uses less digits than its factorization.

20385027940992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371230882 (or 371230870 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 60.

The spelling of 20385027940992 in words is "twenty trillion, three hundred eighty-five billion, twenty-seven million, nine hundred forty thousand, nine hundred ninety-two".