1320455530625 has 60 divisors (see below), whose sum is σ = 2072779898112. Its totient is φ = 823140780000.

The previous prime is 1320455530619. The next prime is 1320455530627. The reversal of 1320455530625 is 5260355540231.

It is not a de Polignac number, because 1320455530625 - 2⁶ = 1320455530561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1320455530627) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 717809 + ... + 1776558.

Almost surely, 2^{1320455530625} is an apocalyptic number.

It is an amenable number.

1320455530625 is a deficient number, since it is larger than the sum of its proper divisors (752324367487).

1320455530625 is an equidigital number, since it uses as much as digits as its factorization.

1320455530625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2494416 (or 2494390 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 41.

The spelling of 1320455530625 in words is "one trillion, three hundred twenty billion, four hundred fifty-five million, five hundred thirty thousand, six hundred twenty-five".