656157152 has 48 divisors (see below), whose sum is σ = 1485493632. Its totient is φ = 279469440.

The previous prime is 656157121. The next prime is 656157169. The reversal of 656157152 is 251751656.

It is a super-2 number, since 2×656157152² = 861084416241502208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 27527 + ... + 45497.

It is an arithmetic number, because the mean of its divisors is an integer number (30947784).

Almost surely, 2^656157152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 656157152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (742746816).

656157152 is an abundant number, since it is smaller than the sum of its proper divisors (829336480).

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

656157152 is a wasteful number, since it uses less digits than its factorization.

656157152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18151 (or 18143 counting only the distinct ones).

The product of its digits is 63000, while the sum is 38.

The square root of 656157152 is about 25615.5646433960. The cubic root of 656157152 is about 868.9656761621.

The spelling of 656157152 in words is "six hundred fifty-six million, one hundred fifty-seven thousand, one hundred fifty-two".