111155005090 has 16 divisors (see below), whose sum is σ = 206978285880. Its totient is φ = 42928829440.

The previous prime is 111155005057. The next prime is 111155005127. The reversal of 111155005090 is 90500551111.

It can be written as a sum of positive squares in 4 ways, for example, as 94177175689 + 16977829401 = 306883^2 + 130299^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191646271 + ... + 191646850.

Almost surely, 2^111155005090 is an apocalyptic number.

111155005090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111155005090 is a deficient number, since it is larger than the sum of its proper divisors (95823280790).

111155005090 is a wasteful number, since it uses less digits than its factorization.

111155005090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383293157.

The product of its (nonzero) digits is 1125, while the sum is 28.

The spelling of 111155005090 in words is "one hundred eleven billion, one hundred fifty-five million, five thousand, ninety".