656136441 has 24 divisors (see below), whose sum is σ = 976060800. Its totient is φ = 424490976.

The previous prime is 656136431. The next prime is 656136473. The reversal of 656136441 is 144631656.

It is a happy number.

656136441 is a `hidden beast` number, since 6 + 5 + 6 + 1 + 3 + 644 + 1 = 666.

It is not a de Polignac number, because 656136441 - 2⁵ = 656136409 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 656136396 and 656136405.

It is not an unprimeable number, because it can be changed into a prime (656136431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55360 + ... + 66158.

It is an arithmetic number, because the mean of its divisors is an integer number (40669200).

Almost surely, 2^656136441 is an apocalyptic number.

It is an amenable number.

656136441 is a deficient number, since it is larger than the sum of its proper divisors (319924359).

656136441 is a wasteful number, since it uses less digits than its factorization.

656136441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11005 (or 11002 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 656136441 is about 25615.1603742784. The cubic root of 656136441 is about 868.9565333638.

The spelling of 656136441 in words is "six hundred fifty-six million, one hundred thirty-six thousand, four hundred forty-one".