660308383 has 16 divisors (see below), whose sum is σ = 773393920. Its totient is φ = 552077856.

The previous prime is 660308377. The next prime is 660308393. The reversal of 660308383 is 383803066.

It is not a de Polignac number, because 660308383 - 2⁵ = 660308351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660308393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41473 + ... + 55141.

It is an arithmetic number, because the mean of its divisors is an integer number (48337120).

Almost surely, 2^660308383 is an apocalyptic number.

660308383 is a deficient number, since it is larger than the sum of its proper divisors (113085537).

660308383 is a wasteful number, since it uses less digits than its factorization.

660308383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13846.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 660308383 is about 25696.4663523995. The cubic root of 660308383 is about 870.7943522265.

The spelling of 660308383 in words is "six hundred sixty million, three hundred eight thousand, three hundred eighty-three".