660253475 has 24 divisors (see below), whose sum is σ = 942439680. Its totient is φ = 449471520.

The previous prime is 660253459. The next prime is 660253507. The reversal of 660253475 is 574352066.

It is not a de Polignac number, because 660253475 - 2⁴ = 660253459 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10754 + ... + 37896.

It is an arithmetic number, because the mean of its divisors is an integer number (39268320).

Almost surely, 2^660253475 is an apocalyptic number.

660253475 is a deficient number, since it is larger than the sum of its proper divisors (282186205).

660253475 is a wasteful number, since it uses less digits than its factorization.

660253475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27299 (or 27294 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 38.

The square root of 660253475 is about 25695.3979342605. The cubic root of 660253475 is about 870.7702145645.

The spelling of 660253475 in words is "six hundred sixty million, two hundred fifty-three thousand, four hundred seventy-five".