2155616312310 has 48 divisors (see below), whose sum is σ = 5619873894336. Its totient is φ = 573264710784.

The previous prime is 2155616312209. The next prime is 2155616312327. The reversal of 2155616312310 is 132136165512.

2155616312310 is a `hidden beast` number, since 2 + 1 + 5 + 5 + 6 + 1 + 631 + 2 + 3 + 10 = 666.

It is a super-2 number, since 2×2155616312310² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32598159 + ... + 32664218.

It is an arithmetic number, because the mean of its divisors is an integer number (117080706132).

Almost surely, 2^{2155616312310} is an apocalyptic number.

2155616312310 is an abundant number, since it is smaller than the sum of its proper divisors (3464257582026).

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

2155616312310 is a wasteful number, since it uses less digits than its factorization.

2155616312310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65262757 (or 65262754 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 2155616312310 in words is "two trillion, one hundred fifty-five billion, six hundred sixteen million, three hundred twelve thousand, three hundred ten".