2156133244434 has 16 divisors (see below), whose sum is σ = 4643979295872. Its totient is φ = 663425613648.

The previous prime is 2156133244373. The next prime is 2156133244451. The reversal of 2156133244434 is 4344423316512.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13821366874 + ... + 13821367029.

It is an arithmetic number, because the mean of its divisors is an integer number (290248705992).

Almost surely, 2^{2156133244434} is an apocalyptic number.

2156133244434 is an abundant number, since it is smaller than the sum of its proper divisors (2487846051438).

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

2156133244434 is a wasteful number, since it uses less digits than its factorization.

2156133244434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27642733921.

The product of its digits is 829440, while the sum is 42.

The spelling of 2156133244434 in words is "two trillion, one hundred fifty-six billion, one hundred thirty-three million, two hundred forty-four thousand, four hundred thirty-four".