11331166799778 has 64 divisors (see below), whose sum is σ = 26287952839680. Its totient is φ = 3188964157632.

The previous prime is 11331166799773. The next prime is 11331166799779. The reversal of 11331166799778 is 87799766113311.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11331166799773) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50509125 + ... + 50732967.

It is an arithmetic number, because the mean of its divisors is an integer number (410749263120).

Almost surely, 2^{11331166799778} is an apocalyptic number.

11331166799778 is an abundant number, since it is smaller than the sum of its proper divisors (14956786039902).

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

11331166799778 is a wasteful number, since it uses less digits than its factorization.

11331166799778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241911.

The product of its digits is 72013536, while the sum is 69.

The spelling of 11331166799778 in words is "eleven trillion, three hundred thirty-one billion, one hundred sixty-six million, seven hundred ninety-nine thousand, seven hundred seventy-eight".