660253416 has 32 divisors (see below), whose sum is σ = 1662690240. Its totient is φ = 218476928.

The previous prime is 660253397. The next prime is 660253417. The reversal of 660253416 is 614352066.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (660253417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97116 + ... + 103691.

It is an arithmetic number, because the mean of its divisors is an integer number (51959070).

Almost surely, 2^660253416 is an apocalyptic number.

It is an amenable number.

660253416 is an abundant number, since it is smaller than the sum of its proper divisors (1002436824).

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

660253416 is a wasteful number, since it uses less digits than its factorization.

660253416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200953 (or 200949 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 660253416 is about 25695.3967861950. The cubic root of 660253416 is about 870.7701886272.

The spelling of 660253416 in words is "six hundred sixty million, two hundred fifty-three thousand, four hundred sixteen".