15657116650 has 96 divisors (see below), whose sum is σ = 34169955840. Its totient is φ = 5226923520.

The previous prime is 15657116647. The next prime is 15657116659. The reversal of 15657116650 is 5661175651.

It is a junction number, because it is equal to n+sod(n) for n = 15657116597 and 15657116606.

It is not an unprimeable number, because it can be changed into a prime (15657116659) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 2014572 + ... + 2022328.

It is an arithmetic number, because the mean of its divisors is an integer number (355937040).

Almost surely, 2^15657116650 is an apocalyptic number.

15657116650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15657116650 is an abundant number, since it is smaller than the sum of its proper divisors (18512839190).

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

15657116650 is a wasteful number, since it uses less digits than its factorization.

15657116650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7928 (or 7923 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 43.

The spelling of 15657116650 in words is "fifteen billion, six hundred fifty-seven million, one hundred sixteen thousand, six hundred fifty".