66959101 has 12 divisors (see below), whose sum is σ = 75978112. Its totient is φ = 58905000.

The previous prime is 66959083. The next prime is 66959117. The reversal of 66959101 is 10195966.

It is not a de Polignac number, because 66959101 - 2⁵ = 66959069 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 (66959201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5175 + ... + 12676.

Almost surely, 2^66959101 is an apocalyptic number.

It is an amenable number.

66959101 is a deficient number, since it is larger than the sum of its proper divisors (9019011).

66959101 is a wasteful number, since it uses less digits than its factorization.

66959101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17904 (or 17893 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 66959101 is about 8182.8540864420. The cubic root of 66959101 is about 406.0721498120.

The spelling of 66959101 in words is "sixty-six million, nine hundred fifty-nine thousand, one hundred one".