66348675 has 36 divisors (see below), whose sum is σ = 124014384. Its totient is φ = 33844800.

The previous prime is 66348641. The next prime is 66348691. The reversal of 66348675 is 57684366.

66348675 is a `hidden beast` number, since 6 + 634 + 8 + 6 + 7 + 5 = 666.

It is not a de Polignac number, because 66348675 - 2⁷ = 66348547 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 66348675.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1236 + ... + 11585.

It is an arithmetic number, because the mean of its divisors is an integer number (3444844).

Almost surely, 2^66348675 is an apocalyptic number.

66348675 is a deficient number, since it is larger than the sum of its proper divisors (57665709).

66348675 is a wasteful number, since it uses less digits than its factorization.

66348675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12860 (or 12852 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 66348675 is about 8145.4695997223. The cubic root of 66348675 is about 404.8344087561.

The spelling of 66348675 in words is "sixty-six million, three hundred forty-eight thousand, six hundred seventy-five".