66023675 has 6 divisors (see below), whose sum is σ = 81869388. Its totient is φ = 52818920.

The previous prime is 66023669. The next prime is 66023701. The reversal of 66023675 is 57632066.

It is not a de Polignac number, because 66023675 - 2¹⁰ = 66022651 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1320449 + ... + 1320498.

It is an arithmetic number, because the mean of its divisors is an integer number (13644898).

Almost surely, 2^66023675 is an apocalyptic number.

66023675 is a deficient number, since it is larger than the sum of its proper divisors (15845713).

66023675 is a wasteful number, since it uses less digits than its factorization.

66023675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2640957 (or 2640952 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 66023675 is about 8125.4953695144. The cubic root of 66023675 is about 404.1723176782.

The spelling of 66023675 in words is "sixty-six million, twenty-three thousand, six hundred seventy-five".