15680708400 has 120 divisors (see below), whose sum is σ = 57406357504. Its totient is φ = 3584160000.

The previous prime is 15680708399. The next prime is 15680708431. The reversal of 15680708400 is 480708651.

15680708400 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 (120).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 924976 + ... + 941775.

Almost surely, 2^15680708400 is an apocalyptic number.

15680708400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15680708400 is an abundant number, since it is smaller than the sum of its proper divisors (41725649104).

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

15680708400 is a wasteful number, since it uses less digits than its factorization.

15680708400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1866779 (or 1866768 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The spelling of 15680708400 in words is "fifteen billion, six hundred eighty million, seven hundred eight thousand, four hundred".