8120955917200 has 60 divisors (see below), whose sum is σ = 22297824683200. Its totient is φ = 2784327742080.

The previous prime is 8120955917161. The next prime is 8120955917219. The reversal of 8120955917200 is 27195590218.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1450167900 + ... + 1450173499.

Almost surely, 2^{8120955917200} is an apocalyptic number.

8120955917200 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8120955917200 is an abundant number, since it is smaller than the sum of its proper divisors (14176868766000).

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

8120955917200 is a wasteful number, since it uses less digits than its factorization.

8120955917200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2900341424 (or 2900341413 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 49.

The spelling of 8120955917200 in words is "eight trillion, one hundred twenty billion, nine hundred fifty-five million, nine hundred seventeen thousand, two hundred".