2156110131552 has 192 divisors, whose sum is σ = 6438807728640. Its totient is φ = 626263142400.

The previous prime is 2156110131499. The next prime is 2156110131587. The reversal of 2156110131552 is 2551310116512.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6501277 + ... + 6824867.

It is an arithmetic number, because the mean of its divisors is an integer number (33535456920).

Almost surely, 2^{2156110131552} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2156110131552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3219403864320).

2156110131552 is an abundant number, since it is smaller than the sum of its proper divisors (4282697597088).

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

2156110131552 is a wasteful number, since it uses less digits than its factorization.

2156110131552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323917 (or 323909 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 33.

The spelling of 2156110131552 in words is "two trillion, one hundred fifty-six billion, one hundred ten million, one hundred thirty-one thousand, five hundred fifty-two".