2656042161 has 8 divisors (see below), whose sum is σ = 3568423584. Its totient is φ = 1757177760.

The previous prime is 2656042097. The next prime is 2656042171. The reversal of 2656042161 is 1612406562.

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

It is not a de Polignac number, because 2656042161 - 2⁶ = 2656042097 is a prime.

It is a super-2 number, since 2×2656042161² = 14109119922019099842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2656042171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3378796 + ... + 3379581.

It is an arithmetic number, because the mean of its divisors is an integer number (446052948).

Almost surely, 2^2656042161 is an apocalyptic number.

It is an amenable number.

2656042161 is a deficient number, since it is larger than the sum of its proper divisors (912381423).

2656042161 is a wasteful number, since it uses less digits than its factorization.

2656042161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6758511.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 2656042161 is about 51536.8039463062. The cubic root of 2656042161 is about 1384.8784422415.

The spelling of 2656042161 in words is "two billion, six hundred fifty-six million, forty-two thousand, one hundred sixty-one".