66093100 has 36 divisors (see below), whose sum is σ = 147306544. Its totient is φ = 25721280.

The previous prime is 66093011. The next prime is 66093101. The reversal of 66093100 is 139066.

It is a super-2 number, since 2×66093100² = 8736595735220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (66093101) 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, 5232 + ... + 12631.

Almost surely, 2^66093100 is an apocalyptic number.

It is an amenable number.

66093100 is an abundant number, since it is smaller than the sum of its proper divisors (81213444).

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

66093100 is a wasteful number, since it uses less digits than its factorization.

66093100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17914 (or 17907 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 66093100 is about 8129.7662943039. The cubic root of 66093100 is about 404.3139327066.

The spelling of 66093100 in words is "sixty-six million, ninety-three thousand, one hundred".