1155540841258 has 16 divisors (see below), whose sum is σ = 1742875803360. Its totient is φ = 574586485200.

The previous prime is 1155540841181. The next prime is 1155540841369. The reversal of 1155540841258 is 8521480455511.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515713 + ... + 1605316.

It is an arithmetic number, because the mean of its divisors is an integer number (108929737710).

Almost surely, 2^{1155540841258} is an apocalyptic number.

1155540841258 is a deficient number, since it is larger than the sum of its proper divisors (587334962102).

1155540841258 is a wasteful number, since it uses less digits than its factorization.

1155540841258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122533.

The product of its (nonzero) digits is 1280000, while the sum is 49.

The spelling of 1155540841258 in words is "one trillion, one hundred fifty-five billion, five hundred forty million, eight hundred forty-one thousand, two hundred fifty-eight".