1155005055615 has 16 divisors (see below), whose sum is σ = 1893081458016. Its totient is φ = 600978240000.

The previous prime is 1155005055601. The next prime is 1155005055623. The reversal of 1155005055615 is 5165505005511.

It is not a de Polignac number, because 1155005055615 - 2⁶ = 1155005055551 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 939027886 + ... + 939029115.

It is an arithmetic number, because the mean of its divisors is an integer number (118317591126).

Almost surely, 2^{1155005055615} is an apocalyptic number.

1155005055615 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1155005055615 is a deficient number, since it is larger than the sum of its proper divisors (738076402401).

1155005055615 is a wasteful number, since it uses less digits than its factorization.

1155005055615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878057050.

The product of its (nonzero) digits is 93750, while the sum is 39.

The spelling of 1155005055615 in words is "one trillion, one hundred fifty-five billion, five million, fifty-five thousand, six hundred fifteen".