1326920371200 has 198 divisors, whose sum is σ = 4751003506964. Its totient is φ = 353845370880.

The previous prime is 1326920371193. The next prime is 1326920371237. The reversal of 1326920371200 is 21730296231.

1326920371200 is a `hidden beast` number, since 1 + 3 + 2 + 69 + 20 + 371 + 200 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2649202 + ... + 3110001.

Almost surely, 2^{1326920371200} is an apocalyptic number.

1326920371200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1326920371200 is an abundant number, since it is smaller than the sum of its proper divisors (3424083135764).

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

1326920371200 is a wasteful number, since it uses less digits than its factorization.

1326920371200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5759239 (or 5759213 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The spelling of 1326920371200 in words is "one trillion, three hundred twenty-six billion, nine hundred twenty million, three hundred seventy-one thousand, two hundred".