20013657265740 has 192 divisors, whose sum is σ = 56419171885440. Its totient is φ = 5300856422400.

The previous prime is 20013657265709. The next prime is 20013657265751. The reversal of 20013657265740 is 4756275631002.

It is a self number, because there is not a number n which added to its sum of digits gives 20013657265740.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9673105426 + ... + 9673107494.

It is an arithmetic number, because the mean of its divisors is an integer number (293849853570).

Almost surely, 2^{20013657265740} is an apocalyptic number.

20013657265740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20013657265740 is an abundant number, since it is smaller than the sum of its proper divisors (36405514619700).

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

20013657265740 is a wasteful number, since it uses less digits than its factorization.

20013657265740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4012 (or 4010 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 48.

The spelling of 20013657265740 in words is "twenty trillion, thirteen billion, six hundred fifty-seven million, two hundred sixty-five thousand, seven hundred forty".