111561066118290 has 128 divisors (see below), whose sum is σ = 270590816118528. Its totient is φ = 29435390899200.

The previous prime is 111561066118277. The next prime is 111561066118309. The reversal of 111561066118290 is 92811660165111.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1413897840 + ... + 1413976740.

It is an arithmetic number, because the mean of its divisors is an integer number (2113990750926).

Almost surely, 2^{111561066118290} is an apocalyptic number.

111561066118290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111561066118290 is an abundant number, since it is smaller than the sum of its proper divisors (159029750000238).

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

111561066118290 is a wasteful number, since it uses less digits than its factorization.

111561066118290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80332.

The product of its (nonzero) digits is 155520, while the sum is 48.

The spelling of 111561066118290 in words is "one hundred eleven trillion, five hundred sixty-one billion, sixty-six million, one hundred eighteen thousand, two hundred ninety".