15999682468800 has 84 divisors (see below), whose sum is σ = 52492291582136. Its totient is φ = 4266581990400.

The previous prime is 15999682468771. The next prime is 15999682468813. The reversal of 15999682468800 is 886428699951.

It is a Harshad number since it is a multiple of its sum of digits (75).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1666628791 + ... + 1666638390.

Almost surely, 2^{15999682468800} is an apocalyptic number.

15999682468800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15999682468800 is an abundant number, since it is smaller than the sum of its proper divisors (36492609113336).

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

15999682468800 is a wasteful number, since it uses less digits than its factorization.

15999682468800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3333267206 (or 3333267191 counting only the distinct ones).

The product of its (nonzero) digits is 537477120, while the sum is 75.

The spelling of 15999682468800 in words is "fifteen trillion, nine hundred ninety-nine billion, six hundred eighty-two million, four hundred sixty-eight thousand, eight hundred".