66393100 has 36 divisors (see below), whose sum is σ = 146803104. Its totient is φ = 26054080.

The previous prime is 66393097. The next prime is 66393167. The reversal of 66393100 is 139366.

It is a super-2 number, since 2×66393100² = 8816087455220000, which contains 22 as substring.

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, 964 + ... + 11563.

It is an arithmetic number, because the mean of its divisors is an integer number (4077864).

Almost surely, 2^66393100 is an apocalyptic number.

It is an amenable number.

66393100 is an abundant number, since it is smaller than the sum of its proper divisors (80410004).

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

66393100 is a wasteful number, since it uses less digits than its factorization.

66393100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12594 (or 12587 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 66393100 is about 8148.1961193874. The cubic root of 66393100 is about 404.9247434217.

The spelling of 66393100 in words is "sixty-six million, three hundred ninety-three thousand, one hundred".