2156134621110 has 32 divisors (see below), whose sum is σ = 5187375254880. Its totient is φ = 573563436288.

The previous prime is 2156134621063. The next prime is 2156134621111. The reversal of 2156134621110 is 111264316512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156134621111) 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, 87849777 + ... + 87874316.

It is an arithmetic number, because the mean of its divisors is an integer number (162105476715).

Almost surely, 2^{2156134621110} is an apocalyptic number.

2156134621110 is an abundant number, since it is smaller than the sum of its proper divisors (3031240633770).

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

2156134621110 is a wasteful number, since it uses less digits than its factorization.

2156134621110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175724512.

The product of its (nonzero) digits is 8640, while the sum is 33.

Adding to 2156134621110 its reverse (111264316512), we get a palindrome (2267398937622).

The spelling of 2156134621110 in words is "two trillion, one hundred fifty-six billion, one hundred thirty-four million, six hundred twenty-one thousand, one hundred ten".