2145415656 has 16 divisors (see below), whose sum is σ = 5363539200. Its totient is φ = 715138544.

The previous prime is 2145415603. The next prime is 2145415669. The reversal of 2145415656 is 6565145412.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44696136 + ... + 44696183.

It is an arithmetic number, because the mean of its divisors is an integer number (335221200).

Almost surely, 2^2145415656 is an apocalyptic number.

It is an amenable number.

2145415656 is an abundant number, since it is smaller than the sum of its proper divisors (3218123544).

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

2145415656 is a wasteful number, since it uses less digits than its factorization.

2145415656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89392328 (or 89392324 counting only the distinct ones).

The product of its digits is 144000, while the sum is 39.

The square root of 2145415656 is about 46318.6318450794. The cubic root of 2145415656 is about 1289.7448879572.

The spelling of 2145415656 in words is "two billion, one hundred forty-five million, four hundred fifteen thousand, six hundred fifty-six".