2115155626620 has 48 divisors (see below), whose sum is σ = 5926669324800. Its totient is φ = 563638303296.

The previous prime is 2115155626613. The next prime is 2115155626627. The reversal of 2115155626620 is 266265515112.

It is an interprime number because it is at equal distance from previous prime (2115155626613) and next prime (2115155626627).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115155626627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12515272 + ... + 12683151.

It is an arithmetic number, because the mean of its divisors is an integer number (123472277600).

Almost surely, 2^{2115155626620} is an apocalyptic number.

2115155626620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2115155626620 is an abundant number, since it is smaller than the sum of its proper divisors (3811513698180).

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

2115155626620 is a wasteful number, since it uses less digits than its factorization.

2115155626620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25199834 (or 25199832 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 42.

The spelling of 2115155626620 in words is "two trillion, one hundred fifteen billion, one hundred fifty-five million, six hundred twenty-six thousand, six hundred twenty".