66055100 has 36 divisors (see below), whose sum is σ = 146844768. Its totient is φ = 25776000.

The previous prime is 66055097. The next prime is 66055123. The reversal of 66055100 is 155066.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3956 + ... + 12155.

Almost surely, 2^66055100 is an apocalyptic number.

It is an amenable number.

66055100 is an abundant number, since it is smaller than the sum of its proper divisors (80789668).

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

66055100 is a wasteful number, since it uses less digits than its factorization.

66055100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16166 (or 16159 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 66055100 is about 8127.4288677293. The cubic root of 66055100 is about 404.2364315511.

The spelling of 66055100 in words is "sixty-six million, fifty-five thousand, one hundred".