1320365674800 has 420 divisors, whose sum is σ = 4770163942200. Its totient is φ = 351055918080.

The previous prime is 1320365674783. The next prime is 1320365674801. The reversal of 1320365674800 is 84765630231.

1320365674800 is a `hidden beast` number, since 1 + 3 + 2 + 0 + 3 + 6 + 567 + 4 + 80 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1320365674801) by changing a digit.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 101178676 + ... + 101191724.

Almost surely, 2^{1320365674800} is an apocalyptic number.

1320365674800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1320365674800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2385081971100).

1320365674800 is an abundant number, since it is smaller than the sum of its proper divisors (3449798267400).

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

1320365674800 is a wasteful number, since it uses less digits than its factorization.

1320365674800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13432 (or 13406 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 1320365674800 in words is "one trillion, three hundred twenty billion, three hundred sixty-five million, six hundred seventy-four thousand, eight hundred".