653131656 has 48 divisors (see below), whose sum is σ = 1779523200. Its totient is φ = 216402912.

The previous prime is 653131613. The next prime is 653131729. The reversal of 653131656 is 656131356.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 653131656.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15136 + ... + 39183.

It is an arithmetic number, because the mean of its divisors is an integer number (37073400).

Almost surely, 2^653131656 is an apocalyptic number.

It is an amenable number.

653131656 is an abundant number, since it is smaller than the sum of its proper divisors (1126391544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

653131656 is a wasteful number, since it uses less digits than its factorization.

653131656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54498 (or 54491 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The square root of 653131656 is about 25556.4405972350. The cubic root of 653131656 is about 867.6280375868.

The spelling of 653131656 in words is "six hundred fifty-three million, one hundred thirty-one thousand, six hundred fifty-six".