111670664 has 16 divisors (see below), whose sum is σ = 239294400. Its totient is φ = 47858832.

The previous prime is 111670661. The next prime is 111670667. The reversal of 111670664 is 466076111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (111670661) and next prime (111670667).

It is a self number, because there is not a number n which added to its sum of digits gives 111670664.

It is not an unprimeable number, because it can be changed into a prime (111670661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 997004 + ... + 997115.

It is an arithmetic number, because the mean of its divisors is an integer number (14955900).

Almost surely, 2^111670664 is an apocalyptic number.

111670664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

111670664 is an abundant number, since it is smaller than the sum of its proper divisors (127623736).

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

111670664 is a wasteful number, since it uses less digits than its factorization.

111670664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1994132 (or 1994128 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 111670664 is about 10567.4341256523. The cubic root of 111670664 is about 481.5555207576. Note that the first 4 decimals are identical.

The spelling of 111670664 in words is "one hundred eleven million, six hundred seventy thousand, six hundred sixty-four".