666063100 has 36 divisors (see below), whose sum is σ = 1447751088. Its totient is φ = 265984000.

The previous prime is 666063091. The next prime is 666063103. The reversal of 666063100 is 1360666.

It is a super-2 number, since 2×666063100² = 887280106363220000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666063103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58905 + ... + 69295.

It is an arithmetic number, because the mean of its divisors is an integer number (40215308).

Almost surely, 2^666063100 is an apocalyptic number.

It is an amenable number.

666063100 is an abundant number, since it is smaller than the sum of its proper divisors (781687988).

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

666063100 is a wasteful number, since it uses less digits than its factorization.

666063100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11046 (or 11039 counting only the distinct ones).

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

The square root of 666063100 is about 25808.1983098395. The cubic root of 666063100 is about 873.3167531119.

The spelling of 666063100 in words is "six hundred sixty-six million, sixty-three thousand, one hundred".