11992554318 has 32 divisors (see below), whose sum is σ = 24322970016. Its totient is φ = 3941250048.

The previous prime is 11992554317. The next prime is 11992554319. The reversal of 11992554318 is 81345529911.

It is an interprime number because it is at equal distance from previous prime (11992554317) and next prime (11992554319).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11992554317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2221030 + ... + 2226422.

It is an arithmetic number, because the mean of its divisors is an integer number (760092813).

Almost surely, 2^11992554318 is an apocalyptic number.

11992554318 is an abundant number, since it is smaller than the sum of its proper divisors (12330415698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11992554318 is a wasteful number, since it uses less digits than its factorization.

11992554318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10548.

The product of its digits is 388800, while the sum is 48.

The spelling of 11992554318 in words is "eleven billion, nine hundred ninety-two million, five hundred fifty-four thousand, three hundred eighteen".