66008895 has 24 divisors (see below), whose sum is σ = 106869168. Its totient is φ = 34790400.

The previous prime is 66008879. The next prime is 66008911. The reversal of 66008895 is 59880066.

It is an interprime number because it is at equal distance from previous prime (66008879) and next prime (66008911).

It is not a de Polignac number, because 66008895 - 2⁴ = 66008879 is a prime.

It is a congruent number.

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, 341919 + ... + 342111.

It is an arithmetic number, because the mean of its divisors is an integer number (4452882).

Almost surely, 2^66008895 is an apocalyptic number.

66008895 is a deficient number, since it is larger than the sum of its proper divisors (40860273).

66008895 is a wasteful number, since it uses less digits than its factorization.

66008895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503 (or 352 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 66008895 is about 8124.5858355980. The cubic root of 66008895 is about 404.1421562113.

The spelling of 66008895 in words is "sixty-six million, eight thousand, eight hundred ninety-five".