66959001 has 8 divisors (see below), whose sum is σ = 99198560. Its totient is φ = 44639316.

The previous prime is 66958967. The next prime is 66959017. The reversal of 66959001 is 10095966.

66959001 is a `hidden beast` number, since 6 + 69 + 590 + 0 + 1 = 666.

It is not a de Polignac number, because 66959001 - 2⁷ = 66958873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66959051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1239955 + ... + 1240008.

It is an arithmetic number, because the mean of its divisors is an integer number (12399820).

Almost surely, 2^66959001 is an apocalyptic number.

It is an amenable number.

66959001 is a deficient number, since it is larger than the sum of its proper divisors (32239559).

66959001 is a wasteful number, since it uses less digits than its factorization.

66959001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2479972 (or 2479966 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 66959001 is about 8182.8479761022. The cubic root of 66959001 is about 406.0719476625.

The spelling of 66959001 in words is "sixty-six million, nine hundred fifty-nine thousand, one".