66079617 has 8 divisors (see below), whose sum is σ = 88149600. Its totient is φ = 44031360.

The previous prime is 66079609. The next prime is 66079619. The reversal of 66079617 is 71697066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66079617 - 2³ = 66079609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66079619) 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, 4017 + ... + 12177.

It is an arithmetic number, because the mean of its divisors is an integer number (11018700).

Almost surely, 2^66079617 is an apocalyptic number.

It is an amenable number.

66079617 is a deficient number, since it is larger than the sum of its proper divisors (22069983).

66079617 is a wasteful number, since it uses less digits than its factorization.

66079617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10863.

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 66079617 is about 8128.9370153791. The cubic root of 66079617 is about 404.2864374739.

The spelling of 66079617 in words is "sixty-six million, seventy-nine thousand, six hundred seventeen".