11040811555 has 32 divisors (see below), whose sum is σ = 14577200640. Its totient is φ = 7990456320.

The previous prime is 11040811519. The next prime is 11040811583. The reversal of 11040811555 is 55511804011.

It is not a de Polignac number, because 11040811555 - 2⁷ = 11040811427 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1396644 + ... + 1404526.

It is an arithmetic number, because the mean of its divisors is an integer number (455537520).

Almost surely, 2^11040811555 is an apocalyptic number.

11040811555 is a deficient number, since it is larger than the sum of its proper divisors (3536389085).

11040811555 is a wasteful number, since it uses less digits than its factorization.

11040811555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8571.

The product of its (nonzero) digits is 4000, while the sum is 31.

The spelling of 11040811555 in words is "eleven billion, forty million, eight hundred eleven thousand, five hundred fifty-five".