666045300 has 36 divisors (see below), whose sum is σ = 1927091936. Its totient is φ = 177612000.

The previous prime is 666045299. The next prime is 666045301. The reversal of 666045300 is 3540666.

It is an interprime number because it is at equal distance from previous prime (666045299) and next prime (666045301).

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666045301) 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, 1109776 + ... + 1110375.

Almost surely, 2^666045300 is an apocalyptic number.

666045300 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

666045300 is an abundant number, since it is smaller than the sum of its proper divisors (1261046636).

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

666045300 is a wasteful number, since it uses less digits than its factorization.

666045300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220168 (or 2220161 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 666045300 is about 25807.8534558766. The cubic root of 666045300 is about 873.3089734803.

Adding to 666045300 its reverse (3540666), we get a palindrome (669585966).

The spelling of 666045300 in words is "six hundred sixty-six million, forty-five thousand, three hundred".