66166300 has 18 divisors (see below), whose sum is σ = 143581088. Its totient is φ = 26466480.

The previous prime is 66166291. The next prime is 66166327. The reversal of 66166300 is 366166.

It is a zygodrome in base 2.

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, 330732 + ... + 330931.

Almost surely, 2^66166300 is an apocalyptic number.

It is an amenable number.

66166300 is an abundant number, since it is smaller than the sum of its proper divisors (77414788).

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

66166300 is a wasteful number, since it uses less digits than its factorization.

66166300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661677 (or 661670 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 66166300 is about 8134.2670229099. The cubic root of 66166300 is about 404.4631407204.

It can be divided in two parts, 66166 and 300, that added together give a palindrome (66466).

The spelling of 66166300 in words is "sixty-six million, one hundred sixty-six thousand, three hundred".