66072675 has 24 divisors (see below), whose sum is σ = 113992704. Its totient is φ = 33705760.

The previous prime is 66072661. The next prime is 66072697. The reversal of 66072675 is 57627066.

It is not a de Polignac number, because 66072675 - 2⁷ = 66072547 is a prime.

It is a zygodrome in base 2.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17427 + ... + 20876.

It is an arithmetic number, because the mean of its divisors is an integer number (4749696).

Almost surely, 2^66072675 is an apocalyptic number.

66072675 is a deficient number, since it is larger than the sum of its proper divisors (47920029).

66072675 is a wasteful number, since it uses less digits than its factorization.

66072675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38339 (or 38334 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 66072675 is about 8128.5100110660. The cubic root of 66072675 is about 404.2722795290.

The spelling of 66072675 in words is "sixty-six million, seventy-two thousand, six hundred seventy-five".