669194200 has 48 divisors (see below), whose sum is σ = 1623534480. Its totient is φ = 256037760.

The previous prime is 669194189. The next prime is 669194203. The reversal of 669194200 is 2491966.

669194200 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 669194200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669194203) 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, 68139 + ... + 77338.

It is an arithmetic number, because the mean of its divisors is an integer number (33823635).

Almost surely, 2^669194200 is an apocalyptic number.

It is an amenable number.

669194200 is an abundant number, since it is smaller than the sum of its proper divisors (954340280).

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

669194200 is a wasteful number, since it uses less digits than its factorization.

669194200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145516 (or 145507 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 669194200 is about 25868.7881432432. The cubic root of 669194200 is about 874.6830743388.

The spelling of 669194200 in words is "six hundred sixty-nine million, one hundred ninety-four thousand, two hundred".