656677653 has 16 divisors (see below), whose sum is σ = 919289280. Its totient is φ = 416376576.

The previous prime is 656677613. The next prime is 656677661. The reversal of 656677653 is 356776656.

It is a happy number.

It is not a de Polignac number, because 656677653 - 2⁶ = 656677589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 656677596 and 656677605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656677613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50500 + ... + 62157.

It is an arithmetic number, because the mean of its divisors is an integer number (57455580).

Almost surely, 2^656677653 is an apocalyptic number.

It is an amenable number.

656677653 is a deficient number, since it is larger than the sum of its proper divisors (262611627).

656677653 is a wasteful number, since it uses less digits than its factorization.

656677653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112756.

The product of its digits is 4762800, while the sum is 51.

The square root of 656677653 is about 25625.7224873758. The cubic root of 656677653 is about 869.1953863561.

The spelling of 656677653 in words is "six hundred fifty-six million, six hundred seventy-seven thousand, six hundred fifty-three".