1155164400365 has 64 divisors (see below), whose sum is σ = 1528541280000. Its totient is φ = 834650707968.

The previous prime is 1155164400361. The next prime is 1155164400421. The reversal of 1155164400365 is 5630044615511.

It is a cyclic number.

It is not a de Polignac number, because 1155164400365 - 2² = 1155164400361 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155164400361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 203263814 + ... + 203269496.

It is an arithmetic number, because the mean of its divisors is an integer number (23883457500).

Almost surely, 2^{1155164400365} is an apocalyptic number.

It is an amenable number.

1155164400365 is a deficient number, since it is larger than the sum of its proper divisors (373376879635).

1155164400365 is a wasteful number, since it uses less digits than its factorization.

1155164400365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6654.

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 1155164400365 in words is "one trillion, one hundred fifty-five billion, one hundred sixty-four million, four hundred thousand, three hundred sixty-five".