111420066 has 16 divisors (see below), whose sum is σ = 234568800. Its totient is φ = 35185248.

The previous prime is 111420019. The next prime is 111420097. The reversal of 111420066 is 660024111.

It is a super-2 number, since 2×111420066² = 24828862214888712, which contains 22 as substring.

It is a Curzon number.

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, 488571 + ... + 488798.

It is an arithmetic number, because the mean of its divisors is an integer number (14660550).

Almost surely, 2^111420066 is an apocalyptic number.

111420066 is an abundant number, since it is smaller than the sum of its proper divisors (123148734).

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

111420066 is a wasteful number, since it uses less digits than its factorization.

111420066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977393.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 111420066 is about 10555.5703777674. The cubic root of 111420066 is about 481.1950344600.

Adding to 111420066 its reverse (660024111), we get a palindrome (771444177).

The spelling of 111420066 in words is "one hundred eleven million, four hundred twenty thousand, sixty-six".