669693357200 has 240 divisors, whose sum is σ = 1942748989440. Its totient is φ = 216717120000.

The previous prime is 669693357191. The next prime is 669693357217. The reversal of 669693357200 is 2753396966.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14393975 + ... + 14440425.

It is an arithmetic number, because the mean of its divisors is an integer number (8094787456).

Almost surely, 2^669693357200 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 669693357200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (971374494720).

669693357200 is an abundant number, since it is smaller than the sum of its proper divisors (1273055632240).

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

669693357200 is a wasteful number, since it uses less digits than its factorization.

669693357200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46766 (or 46755 counting only the distinct ones).

The product of its (nonzero) digits is 11022480, while the sum is 56.

The spelling of 669693357200 in words is "six hundred sixty-nine billion, six hundred ninety-three million, three hundred fifty-seven thousand, two hundred".