660244959 has 16 divisors (see below), whose sum is σ = 1067063040. Its totient is φ = 400148280.

The previous prime is 660244939. The next prime is 660244961. The reversal of 660244959 is 959442066.

It is not a de Polignac number, because 660244959 - 2⁹ = 660244447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660244939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1111227 + ... + 1111820.

It is an arithmetic number, because the mean of its divisors is an integer number (66691440).

Almost surely, 2^660244959 is an apocalyptic number.

660244959 is a deficient number, since it is larger than the sum of its proper divisors (406818081).

660244959 is a wasteful number, since it uses less digits than its factorization.

660244959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2223067 (or 2223061 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 660244959 is about 25695.2322231187. The cubic root of 660244959 is about 870.7664707947.

The spelling of 660244959 in words is "six hundred sixty million, two hundred forty-four thousand, nine hundred fifty-nine".