66700959 has 16 divisors (see below), whose sum is σ = 96144384. Its totient is φ = 40888800.

The previous prime is 66700951. The next prime is 66700987. The reversal of 66700959 is 95900766.

It is not a de Polignac number, because 66700959 - 2³ = 66700951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66700959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66700951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7414 + ... + 13724.

It is an arithmetic number, because the mean of its divisors is an integer number (6009024).

Almost surely, 2^66700959 is an apocalyptic number.

66700959 is a deficient number, since it is larger than the sum of its proper divisors (29443425).

66700959 is a wasteful number, since it uses less digits than its factorization.

66700959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6598.

The product of its (nonzero) digits is 102060, while the sum is 42.

The square root of 66700959 is about 8167.0655072676. The cubic root of 66700959 is about 405.5496454203.

The spelling of 66700959 in words is "sixty-six million, seven hundred thousand, nine hundred fifty-nine".