1000991680320 has 112 divisors (see below), whose sum is σ = 3178487976768. Its totient is φ = 266902609920.

The previous prime is 1000991680319. The next prime is 1000991680343. The reversal of 1000991680320 is 230861990001.

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, 9857647 + ... + 9958673.

Almost surely, 2^{1000991680320} is an apocalyptic number.

1000991680320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000991680320 is an abundant number, since it is smaller than the sum of its proper divisors (2177496296448).

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

1000991680320 is a wasteful number, since it uses less digits than its factorization.

1000991680320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111368 (or 111358 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 39.

The spelling of 1000991680320 in words is "one trillion, nine hundred ninety-one million, six hundred eighty thousand, three hundred twenty".