11715615622020 has 48 divisors (see below), whose sum is σ = 32804808236928. Its totient is φ = 3124060880640.

The previous prime is 11715615622001. The next prime is 11715615622021. The reversal of 11715615622020 is 2022651651711.

It is a self number, because there is not a number n which added to its sum of digits gives 11715615622020.

It is not an unprimeable number, because it can be changed into a prime (11715615622021) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1389009 + ... + 5035928.

It is an arithmetic number, because the mean of its divisors is an integer number (683433504936).

Almost surely, 2^{11715615622020} is an apocalyptic number.

11715615622020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11715615622020 is an abundant number, since it is smaller than the sum of its proper divisors (21089192614908).

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

11715615622020 is a wasteful number, since it uses less digits than its factorization.

11715615622020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6455340 (or 6455338 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 39.

The spelling of 11715615622020 in words is "eleven trillion, seven hundred fifteen billion, six hundred fifteen million, six hundred twenty-two thousand, twenty".