11811090599 has 12 divisors (see below), whose sum is σ = 14837073552. Its totient is φ = 9203446560.

The previous prime is 11811090583. The next prime is 11811090601. The reversal of 11811090599 is 99509011811.

It is not a de Polignac number, because 11811090599 - 2⁴ = 11811090583 is a prime.

It is a super-2 number, since 2×11811090599² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11811092599) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6971462 + ... + 6973155.

It is an arithmetic number, because the mean of its divisors is an integer number (1236422796).

Almost surely, 2^11811090599 is an apocalyptic number.

11811090599 is a deficient number, since it is larger than the sum of its proper divisors (3025982953).

11811090599 is a wasteful number, since it uses less digits than its factorization.

11811090599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13944646 (or 13944635 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 44.

The spelling of 11811090599 in words is "eleven billion, eight hundred eleven million, ninety thousand, five hundred ninety-nine".