999997135599160 has 64 divisors (see below), whose sum is σ = 2286928859997600. Its totient is φ = 393432865497600.

The previous prime is 999997135599127. The next prime is 999997135599181. The reversal of 999997135599160 is 61995531799999.

999997135599160 is a nontrivial binomial coefficient, being equal to C(44721296, 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107331111 + ... + 116275369.

Almost surely, 2^{999997135599160} is an apocalyptic number.

999997135599160 is the 44721295-th triangular number and also the 22360648-th hexagonal number.

999997135599160 is the 14907099-th centered nonagonal number.

It is an amenable number.

999997135599160 is an abundant number, since it is smaller than the sum of its proper divisors (1286931724398440).

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

999997135599160 is a wasteful number, since it uses less digits than its factorization.

999997135599160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8990152 (or 8990148 counting only the distinct ones).

The product of its (nonzero) digits is 15066352350, while the sum is 91.

The spelling of 999997135599160 in words is "nine hundred ninety-nine trillion, nine hundred ninety-seven billion, one hundred thirty-five million, five hundred ninety-nine thousand, one hundred sixty".