66707695 has 8 divisors (see below), whose sum is σ = 81177120. Its totient is φ = 52614240.

The previous prime is 66707687. The next prime is 66707737. The reversal of 66707695 is 59670766.

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

It is not a de Polignac number, because 66707695 - 2³ = 66707687 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93600 + ... + 94309.

It is an arithmetic number, because the mean of its divisors is an integer number (10147140).

Almost surely, 2^66707695 is an apocalyptic number.

66707695 is a deficient number, since it is larger than the sum of its proper divisors (14469425).

66707695 is a wasteful number, since it uses less digits than its factorization.

66707695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187985.

The product of its (nonzero) digits is 476280, while the sum is 46.

The square root of 66707695 is about 8167.4778848798. The cubic root of 66707695 is about 405.5632968505.

It can be divided in two parts, 6670 and 7695, that added together give a triangular number (14365 = T₁₆₉).

The spelling of 66707695 in words is "sixty-six million, seven hundred seven thousand, six hundred ninety-five".