659980455 has 16 divisors (see below), whose sum is σ = 1065316320. Its totient is φ = 348873728.

The previous prime is 659980441. The next prime is 659980459. The reversal of 659980455 is 554089956.

659980455 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 659980455 - 2⁸ = 659980199 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 659980398 and 659980407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (659980459) 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, 192990 + ... + 196379.

It is an arithmetic number, because the mean of its divisors is an integer number (66582270).

Almost surely, 2^659980455 is an apocalyptic number.

659980455 is a deficient number, since it is larger than the sum of its proper divisors (405335865).

659980455 is a wasteful number, since it uses less digits than its factorization.

659980455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389490.

The product of its (nonzero) digits is 1944000, while the sum is 51.

The square root of 659980455 is about 25690.0847604674. The cubic root of 659980455 is about 870.6501745751.

The spelling of 659980455 in words is "six hundred fifty-nine million, nine hundred eighty thousand, four hundred fifty-five".