2656545623 has 8 divisors (see below), whose sum is σ = 2716675200. Its totient is φ = 2596919608.

The previous prime is 2656545611. The next prime is 2656545673. The reversal of 2656545623 is 3265456562.

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 2656545623 - 2⁴ = 2656545607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2656545673) 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, 115211 + ... + 136332.

It is an arithmetic number, because the mean of its divisors is an integer number (339584400).

Almost surely, 2^2656545623 is an apocalyptic number.

2656545623 is a deficient number, since it is larger than the sum of its proper divisors (60129577).

2656545623 is a wasteful number, since it uses less digits than its factorization.

2656545623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251781.

The product of its digits is 1296000, while the sum is 44.

The square root of 2656545623 is about 51541.6882047921. The cubic root of 2656545623 is about 1384.9659395500.

The spelling of 2656545623 in words is "two billion, six hundred fifty-six million, five hundred forty-five thousand, six hundred twenty-three".