111564117994 has 32 divisors (see below), whose sum is σ = 193015664640. Its totient is φ = 47373475968.

The previous prime is 111564117967. The next prime is 111564118013. The reversal of 111564117994 is 499711465111.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1304502 + ... + 1387390.

It is an arithmetic number, because the mean of its divisors is an integer number (6031739520).

Almost surely, 2^111564117994 is an apocalyptic number.

111564117994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

111564117994 is a deficient number, since it is larger than the sum of its proper divisors (81451546646).

111564117994 is a wasteful number, since it uses less digits than its factorization.

111564117994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83782.

The product of its digits is 272160, while the sum is 49.

It can be divided in two parts, 111564117 and 994, that added together give a palindrome (111565111).

The spelling of 111564117994 in words is "one hundred eleven billion, five hundred sixty-four million, one hundred seventeen thousand, nine hundred ninety-four".