996775964400 has 120 divisors (see below), whose sum is σ = 3240662735104. Its totient is φ = 261839635200.

The previous prime is 996775964381. The next prime is 996775964417. The reversal of 996775964400 is 4469577699.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 6118456 + ... + 6279255.

Almost surely, 2^996775964400 is an apocalyptic number.

It is an amenable number.

996775964400 is an abundant number, since it is smaller than the sum of its proper divisors (2243886770704).

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

996775964400 is a wasteful number, since it uses less digits than its factorization.

996775964400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12397799 (or 12397788 counting only the distinct ones).

The product of its (nonzero) digits is 102876480, while the sum is 66.

The spelling of 996775964400 in words is "nine hundred ninety-six billion, seven hundred seventy-five million, nine hundred sixty-four thousand, four hundred".