111660666010 has 16 divisors (see below), whose sum is σ = 201753421056. Its totient is φ = 44494439248.

The previous prime is 111660665947. The next prime is 111660666037. The reversal of 111660666010 is 10666066111.

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, 21225634 + ... + 21230893.

It is an arithmetic number, because the mean of its divisors is an integer number (12609588816).

Almost surely, 2^111660666010 is an apocalyptic number.

111660666010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111660666010 is a deficient number, since it is larger than the sum of its proper divisors (90092755046).

111660666010 is a wasteful number, since it uses less digits than its factorization.

111660666010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42456797.

The product of its (nonzero) digits is 7776, while the sum is 34.

The spelling of 111660666010 in words is "one hundred eleven billion, six hundred sixty million, six hundred sixty-six thousand, ten".