66013675 has 24 divisors (see below), whose sum is σ = 100750496. Its totient is φ = 41783040.

The previous prime is 66013667. The next prime is 66013687. The reversal of 66013675 is 57631066.

It is a happy number.

It is not a de Polignac number, because 66013675 - 2³ = 66013667 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66013675.

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, 12234 + ... + 16783.

Almost surely, 2^66013675 is an apocalyptic number.

66013675 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

66013675 is a deficient number, since it is larger than the sum of its proper divisors (34736821).

66013675 is a wasteful number, since it uses less digits than its factorization.

66013675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29047 (or 29042 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 66013675 is about 8124.8799991138. The cubic root of 66013675 is about 404.1519112243.

The spelling of 66013675 in words is "sixty-six million, thirteen thousand, six hundred seventy-five".