1155162455553 has 8 divisors (see below), whose sum is σ = 1540272666400. Its totient is φ = 770080274208.

The previous prime is 1155162455549. The next prime is 1155162455561. The reversal of 1155162455553 is 3555542615511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1155162455553 - 2² = 1155162455549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1155162455053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6911023 + ... + 7076196.

It is an arithmetic number, because the mean of its divisors is an integer number (192534083300).

Almost surely, 2^{1155162455553} is an apocalyptic number.

It is an amenable number.

1155162455553 is a deficient number, since it is larger than the sum of its proper divisors (385110210847).

1155162455553 is a wasteful number, since it uses less digits than its factorization.

1155162455553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14014751.

The product of its digits is 2250000, while the sum is 48.

The spelling of 1155162455553 in words is "one trillion, one hundred fifty-five billion, one hundred sixty-two million, four hundred fifty-five thousand, five hundred fifty-three".