669258495 has 24 divisors (see below), whose sum is σ = 1160695536. Its totient is φ = 356738688.

The previous prime is 669258449. The next prime is 669258503. The reversal of 669258495 is 594852966.

It is a happy number.

669258495 is a `hidden beast` number, since 66 + 92 + 5 + 8 + 495 = 666.

669258495 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 669258495 - 2⁷ = 669258367 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114924 + ... + 120606.

It is an arithmetic number, because the mean of its divisors is an integer number (48362314).

Almost surely, 2^669258495 is an apocalyptic number.

669258495 is a deficient number, since it is larger than the sum of its proper divisors (491437041).

669258495 is a wasteful number, since it uses less digits than its factorization.

669258495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8311 (or 8308 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 54.

The square root of 669258495 is about 25870.0308271946. The cubic root of 669258495 is about 874.7110861114.

The spelling of 669258495 in words is "six hundred sixty-nine million, two hundred fifty-eight thousand, four hundred ninety-five".