66325959 has 60 divisors (see below), whose sum is σ = 122159664. Its totient is φ = 35634816.

The previous prime is 66325943. The next prime is 66325969. The reversal of 66325959 is 95952366.

66325959 is a `hidden beast` number, since 6 + 632 + 5 + 9 + 5 + 9 = 666.

It is not a de Polignac number, because 66325959 - 2⁴ = 66325943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66325939) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 66982 + ... + 67964.

Almost surely, 2^66325959 is an apocalyptic number.

66325959 is a deficient number, since it is larger than the sum of its proper divisors (55833705).

66325959 is a wasteful number, since it uses less digits than its factorization.

66325959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026 (or 1010 counting only the distinct ones).

The product of its digits is 437400, while the sum is 45.

The square root of 66325959 is about 8144.0750856067. The cubic root of 66325959 is about 404.7882020151.

The spelling of 66325959 in words is "sixty-six million, three hundred twenty-five thousand, nine hundred fifty-nine".