1155115115001 has 24 divisors (see below), whose sum is σ = 1677479207040. Its totient is φ = 765940860000.

The previous prime is 1155115114939. The next prime is 1155115115023. The reversal of 1155115115001 is 1005115115511.

1155115115001 is a `hidden beast` number, since 1 + 1 + 5 + 5 + 1 + 151 + 1 + 500 + 1 = 666.

It is not a de Polignac number, because 1155115115001 - 2¹⁹ = 1155114590713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1155115115081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1268631 + ... + 1979811.

It is an arithmetic number, because the mean of its divisors is an integer number (69894966960).

Almost surely, 2^{1155115115001} is an apocalyptic number.

It is an amenable number.

1155115115001 is a deficient number, since it is larger than the sum of its proper divisors (522364092039).

1155115115001 is a wasteful number, since it uses less digits than its factorization.

1155115115001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712157 (or 712154 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 27.

The spelling of 1155115115001 in words is "one trillion, one hundred fifty-five billion, one hundred fifteen million, one hundred fifteen thousand, one".