66088900 has 36 divisors (see below), whose sum is σ = 148046080. Its totient is φ = 25581600.

The previous prime is 66088879. The next prime is 66088901. The reversal of 66088900 is 988066.

It is a self number, because there is not a number n which added to its sum of digits gives 66088900.

It is not an unprimeable number, because it can be changed into a prime (66088901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7560 + ... + 13759.

Almost surely, 2^66088900 is an apocalyptic number.

It is an amenable number.

66088900 is an abundant number, since it is smaller than the sum of its proper divisors (81957180).

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

66088900 is a wasteful number, since it uses less digits than its factorization.

66088900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21364 (or 21357 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 66088900 is about 8129.5079801917. The cubic root of 66088900 is about 404.3053682499.

The spelling of 66088900 in words is "sixty-six million, eighty-eight thousand, nine hundred".