1155213635164 has 12 divisors (see below), whose sum is σ = 2041639940088. Its totient is φ = 571887938000.

The previous prime is 1155213635129. The next prime is 1155213635171. The reversal of 1155213635164 is 4615363125511.

It is a self number, because there is not a number n which added to its sum of digits gives 1155213635164.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1429719442 + ... + 1429720249.

It is an arithmetic number, because the mean of its divisors is an integer number (170136661674).

Almost surely, 2^{1155213635164} is an apocalyptic number.

It is an amenable number.

1155213635164 is a deficient number, since it is larger than the sum of its proper divisors (886426304924).

1155213635164 is a wasteful number, since it uses less digits than its factorization.

1155213635164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2859439796 (or 2859439794 counting only the distinct ones).

The product of its digits is 324000, while the sum is 43.

The spelling of 1155213635164 in words is "one trillion, one hundred fifty-five billion, two hundred thirteen million, six hundred thirty-five thousand, one hundred sixty-four".