2156145796 has 48 divisors (see below), whose sum is σ = 4393267200. Its totient is φ = 906768288.

The previous prime is 2156145793. The next prime is 2156145809. The reversal of 2156145796 is 6975416512.

It is not an unprimeable number, because it can be changed into a prime (2156145791) 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, 1497645 + ... + 1499083.

It is an arithmetic number, because the mean of its divisors is an integer number (91526400).

Almost surely, 2^2156145796 is an apocalyptic number.

It is an amenable number.

2156145796 is an abundant number, since it is smaller than the sum of its proper divisors (2237121404).

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

2156145796 is a wasteful number, since it uses less digits than its factorization.

2156145796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2416 (or 2414 counting only the distinct ones).

The product of its digits is 453600, while the sum is 46.

The square root of 2156145796 is about 46434.3170080061. The cubic root of 2156145796 is about 1291.8915015586.

The spelling of 2156145796 in words is "two billion, one hundred fifty-six million, one hundred forty-five thousand, seven hundred ninety-six".