660112605 has 32 divisors (see below), whose sum is σ = 1211397120. Its totient is φ = 340701120.

The previous prime is 660112589. The next prime is 660112613. The reversal of 660112605 is 506211066.

It is a happy number.

660112605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 660112605 - 2⁴ = 660112589 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74682 + ... + 83051.

It is an arithmetic number, because the mean of its divisors is an integer number (37856160).

Almost surely, 2^660112605 is an apocalyptic number.

It is an amenable number.

660112605 is a deficient number, since it is larger than the sum of its proper divisors (551284515).

660112605 is a wasteful number, since it uses less digits than its factorization.

660112605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157778 (or 157772 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 660112605 is about 25692.6566357004. The cubic root of 660112605 is about 870.7082817212.

The spelling of 660112605 in words is "six hundred sixty million, one hundred twelve thousand, six hundred five".