2656947155 has 8 divisors (see below), whose sum is σ = 3188817312. Its totient is φ = 2125237248.

The previous prime is 2656947133. The next prime is 2656947169. The reversal of 2656947155 is 5517496562.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2656947155 - 2⁶ = 2656947091 is a prime.

It is a Duffinian number.

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, 74 + ... + 72896.

It is an arithmetic number, because the mean of its divisors is an integer number (398602164).

Almost surely, 2^2656947155 is an apocalyptic number.

2656947155 is a deficient number, since it is larger than the sum of its proper divisors (531870157).

2656947155 is an equidigital number, since it uses as much as digits as its factorization.

2656947155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80125.

The product of its digits is 2268000, while the sum is 50.

The square root of 2656947155 is about 51545.5832734484. The cubic root of 2656947155 is about 1385.0357143888.

The spelling of 2656947155 in words is "two billion, six hundred fifty-six million, nine hundred forty-seven thousand, one hundred fifty-five".