1155107817425 has 12 divisors (see below), whose sum is σ = 1435323966720. Its totient is φ = 922157045520.

The previous prime is 1155107817403. The next prime is 1155107817443. The reversal of 1155107817425 is 5247187015511.

It is not a de Polignac number, because 1155107817425 - 2³⁸ = 880229910481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1155107817425.

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, 48217997 + ... + 48241946.

It is an arithmetic number, because the mean of its divisors is an integer number (119610330560).

Almost surely, 2^{1155107817425} is an apocalyptic number.

It is an amenable number.

1155107817425 is a deficient number, since it is larger than the sum of its proper divisors (280216149295).

1155107817425 is an equidigital number, since it uses as much as digits as its factorization.

1155107817425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96460432 (or 96460427 counting only the distinct ones).

The product of its (nonzero) digits is 392000, while the sum is 47.

The spelling of 1155107817425 in words is "one trillion, one hundred fifty-five billion, one hundred seven million, eight hundred seventeen thousand, four hundred twenty-five".