656651501500 has 96 divisors (see below), whose sum is σ = 1480852219392. Its totient is φ = 254108160000.

The previous prime is 656651501483. The next prime is 656651501503. The reversal of 656651501500 is 5105156656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656651501503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83401564 + ... + 83409436.

It is an arithmetic number, because the mean of its divisors is an integer number (15425543952).

Almost surely, 2^656651501500 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 656651501500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (740426109696).

656651501500 is an abundant number, since it is smaller than the sum of its proper divisors (824200717892).

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

656651501500 is a wasteful number, since it uses less digits than its factorization.

656651501500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13304 (or 13292 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 656651501500 in words is "six hundred fifty-six billion, six hundred fifty-one million, five hundred one thousand, five hundred".