66000888 has 24 divisors (see below), whose sum is σ = 178752600. Its totient is φ = 22000272.

The previous prime is 66000877. The next prime is 66000899. The reversal of 66000888 is 88800066.

It is an interprime number because it is at equal distance from previous prime (66000877) and next prime (66000899).

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×66000888² = 8712234433577088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 458268 + ... + 458411.

It is an arithmetic number, because the mean of its divisors is an integer number (7448025).

Almost surely, 2^66000888 is an apocalyptic number.

It is an amenable number.

66000888 is an abundant number, since it is smaller than the sum of its proper divisors (112751712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66000888 is a wasteful number, since it uses less digits than its factorization.

66000888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916691 (or 916684 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 66000888 is about 8124.0930570741. The cubic root of 66000888 is about 404.1258144890.

The spelling of 66000888 in words is "sixty-six million, eight hundred eighty-eight", and thus it is an aban number.