996197457920 has 224 divisors, whose sum is σ = 2826500011200. Its totient is φ = 329772957696.

The previous prime is 996197457911. The next prime is 996197457929. The reversal of 996197457920 is 29754791699.

It is an interprime number because it is at equal distance from previous prime (996197457911) and next prime (996197457929).

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (996197457929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8254976 + ... + 8374784.

Almost surely, 2^996197457920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 996197457920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1413250005600).

996197457920 is an abundant number, since it is smaller than the sum of its proper divisors (1830302553280).

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

996197457920 is a wasteful number, since it uses less digits than its factorization.

996197457920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119876 (or 119852 counting only the distinct ones).

The product of its (nonzero) digits is 77157360, while the sum is 68.

The spelling of 996197457920 in words is "nine hundred ninety-six billion, one hundred ninety-seven million, four hundred fifty-seven thousand, nine hundred twenty".