2115173506560 has 80 divisors (see below), whose sum is σ = 6761945328336. Its totient is φ = 564046266368.

The previous prime is 2115173506517. The next prime is 2115173506571. The reversal of 2115173506560 is 656053715112.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×2115173506560³ (a number of 38 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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 7 ways as a sum of consecutive naturals, for example, 137698929 + ... + 137714288.

Almost surely, 2^{2115173506560} is an apocalyptic number.

2115173506560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2115173506560 is an abundant number, since it is smaller than the sum of its proper divisors (4646771821776).

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

2115173506560 is an equidigital number, since it uses as much as digits as its factorization.

2115173506560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275413243 (or 275413227 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 42.

The spelling of 2115173506560 in words is "two trillion, one hundred fifteen billion, one hundred seventy-three million, five hundred six thousand, five hundred sixty".