656862048 has 144 divisors (see below), whose sum is σ = 2051496720. Its totient is φ = 206032896.

The previous prime is 656862029. The next prime is 656862061. The reversal of 656862048 is 840268656.

656862048 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 656861994 and 656862012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129708 + ... + 134676.

It is an arithmetic number, because the mean of its divisors is an integer number (14246505).

Almost surely, 2^656862048 is an apocalyptic number.

656862048 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 656862048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1025748360).

656862048 is an abundant number, since it is smaller than the sum of its proper divisors (1394634672).

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

656862048 is a wasteful number, since it uses less digits than its factorization.

656862048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5011 (or 4991 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The square root of 656862048 is about 25629.3200846218. The cubic root of 656862048 is about 869.2767353930.

The spelling of 656862048 in words is "six hundred fifty-six million, eight hundred sixty-two thousand, forty-eight".