20623137731152 has 60 divisors (see below), whose sum is σ = 45567423748224. Its totient is φ = 8966581581760.

The previous prime is 20623137731137. The next prime is 20623137731173. The reversal of 20623137731152 is 25113773132602.

It is a junction number, because it is equal to n+sod(n) for n = 20623137731099 and 20623137731108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110660128 + ... + 110846335.

Almost surely, 2^{20623137731152} is an apocalyptic number.

20623137731152 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20623137731152 is an abundant number, since it is smaller than the sum of its proper divisors (24944286017072).

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

20623137731152 is a wasteful number, since it uses less digits than its factorization.

20623137731152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221506528 (or 221506499 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 43.

The spelling of 20623137731152 in words is "twenty trillion, six hundred twenty-three billion, one hundred thirty-seven million, seven hundred thirty-one thousand, one hundred fifty-two".