1155086431556 has 12 divisors (see below), whose sum is σ = 2036831800080. Its totient is φ = 573134488680.

The previous prime is 1155086431537. The next prime is 1155086431589. The reversal of 1155086431556 is 6551346805511.

It is a super-2 number, since 2×1155086431556² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1102181186 + ... + 1102182233.

It is an arithmetic number, because the mean of its divisors is an integer number (169735983340).

Almost surely, 2^{1155086431556} is an apocalyptic number.

It is an amenable number.

1155086431556 is a deficient number, since it is larger than the sum of its proper divisors (881745368524).

1155086431556 is a wasteful number, since it uses less digits than its factorization.

1155086431556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2204363554 (or 2204363552 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 50.

The spelling of 1155086431556 in words is "one trillion, one hundred fifty-five billion, eighty-six million, four hundred thirty-one thousand, five hundred fifty-six".