656745853 has 12 divisors (see below), whose sum is σ = 699989472. Its totient is φ = 616041920.

The previous prime is 656745847. The next prime is 656745857. The reversal of 656745853 is 358547656.

It is not a de Polignac number, because 656745853 - 2⁵ = 656745821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 656745797 and 656745806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656745857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86226 + ... + 93532.

It is an arithmetic number, because the mean of its divisors is an integer number (58332456).

Almost surely, 2^656745853 is an apocalyptic number.

It is an amenable number.

656745853 is a deficient number, since it is larger than the sum of its proper divisors (43243619).

656745853 is a wasteful number, since it uses less digits than its factorization.

656745853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7652 (or 7635 counting only the distinct ones).

The product of its digits is 3024000, while the sum is 49.

The square root of 656745853 is about 25627.0531470163. The cubic root of 656745853 is about 869.2254757376.

The spelling of 656745853 in words is "six hundred fifty-six million, seven hundred forty-five thousand, eight hundred fifty-three".