111135566790 has 24 divisors (see below), whose sum is σ = 288952473888. Its totient is φ = 29636151120.

The previous prime is 111135566771. The next prime is 111135566791. The reversal of 111135566790 is 97665531111.

111135566790 is a `hidden beast` number, since 1 + 1 + 1 + 1 + 3 + 556 + 6 + 7 + 90 = 666.

It is a super-2 number, since 2×111135566790² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111135566791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 617419726 + ... + 617419905.

It is an arithmetic number, because the mean of its divisors is an integer number (12039686412).

Almost surely, 2^111135566790 is an apocalyptic number.

111135566790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111135566790 is an abundant number, since it is smaller than the sum of its proper divisors (177816907098).

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

111135566790 is a wasteful number, since it uses less digits than its factorization.

111135566790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234839644 (or 1234839641 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 45.

The spelling of 111135566790 in words is "one hundred eleven billion, one hundred thirty-five million, five hundred sixty-six thousand, seven hundred ninety".