660252416 has 18 divisors (see below), whose sum is σ = 1317926232. Its totient is φ = 330126080.

The previous prime is 660252391. The next prime is 660252431. The reversal of 660252416 is 614252066.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1289300 + ... + 1289811.

It is an arithmetic number, because the mean of its divisors is an integer number (73218124).

Almost surely, 2^660252416 is an apocalyptic number.

It is an amenable number.

660252416 is a deficient number, since it is larger than the sum of its proper divisors (657673816).

660252416 is an equidigital number, since it uses as much as digits as its factorization.

660252416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2579127 (or 2579113 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 660252416 is about 25695.3773274494. The cubic root of 660252416 is about 870.7697490129.

The spelling of 660252416 in words is "six hundred sixty million, two hundred fifty-two thousand, four hundred sixteen".