20335507151856 has 40 divisors (see below), whose sum is σ = 56574423744720. Its totient is φ = 6257079123456.

The previous prime is 20335507151821. The next prime is 20335507151887. The reversal of 20335507151856 is 65815170553302.

It is a super-2 number, since 2×20335507151856² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20335507151799 and 20335507151808.

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, 16294476261 + ... + 16294477508.

It is an arithmetic number, because the mean of its divisors is an integer number (1414360593618).

Almost surely, 2^{20335507151856} is an apocalyptic number.

20335507151856 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20335507151856 is an abundant number, since it is smaller than the sum of its proper divisors (36238916592864).

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

20335507151856 is a wasteful number, since it uses less digits than its factorization.

20335507151856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32588953793 (or 32588953787 counting only the distinct ones).

The product of its (nonzero) digits is 3780000, while the sum is 51.

The spelling of 20335507151856 in words is "twenty trillion, three hundred thirty-five billion, five hundred seven million, one hundred fifty-one thousand, eight hundred fifty-six".