2156101105444 has 48 divisors (see below), whose sum is σ = 4433252878656. Its totient is φ = 904570128000.

The previous prime is 2156101105441. The next prime is 2156101105451. The reversal of 2156101105444 is 4445011016512.

It is not an unprimeable number, because it can be changed into a prime (2156101105441) 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, 5901294 + ... + 6255994.

It is an arithmetic number, because the mean of its divisors is an integer number (92359434972).

Almost surely, 2^{2156101105444} is an apocalyptic number.

It is an amenable number.

2156101105444 is an abundant number, since it is smaller than the sum of its proper divisors (2277151773212).

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

2156101105444 is a wasteful number, since it uses less digits than its factorization.

2156101105444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365356 (or 365354 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The spelling of 2156101105444 in words is "two trillion, one hundred fifty-six billion, one hundred one million, one hundred five thousand, four hundred forty-four".