15316568994400 has 72 divisors (see below), whose sum is σ = 37734616236240. Its totient is φ = 6070419970560.

The previous prime is 15316568994371. The next prime is 15316568994413. The reversal of 15316568994400 is 449986561351.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87737164 + ... + 87911563.

It is an arithmetic number, because the mean of its divisors is an integer number (524091892170).

Almost surely, 2^{15316568994400} is an apocalyptic number.

15316568994400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15316568994400 is an abundant number, since it is smaller than the sum of its proper divisors (22418047241840).

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

15316568994400 is a wasteful number, since it uses less digits than its factorization.

15316568994400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175648856 (or 175648843 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 61.

The spelling of 15316568994400 in words is "fifteen trillion, three hundred sixteen billion, five hundred sixty-eight million, nine hundred ninety-four thousand, four hundred".