656630541 has 24 divisors (see below), whose sum is σ = 1097690880. Its totient is φ = 370465056.

The previous prime is 656630531. The next prime is 656630551. The reversal of 656630541 is 145036656.

656630541 is a `hidden beast` number, since 6 + 56 + 63 + 0 + 541 = 666.

It is an interprime number because it is at equal distance from previous prime (656630531) and next prime (656630551).

It is not a de Polignac number, because 656630541 - 2⁵ = 656630509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 656630496 and 656630505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656630501) 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, 60990 + ... + 70943.

It is an arithmetic number, because the mean of its divisors is an integer number (45737120).

Almost surely, 2^656630541 is an apocalyptic number.

It is an amenable number.

656630541 is a deficient number, since it is larger than the sum of its proper divisors (441060339).

656630541 is a wasteful number, since it uses less digits than its factorization.

656630541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132025 (or 132022 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 656630541 is about 25624.8032382690. The cubic root of 656630541 is about 869.1745996418.

The spelling of 656630541 in words is "six hundred fifty-six million, six hundred thirty thousand, five hundred forty-one".