669753798988 has 24 divisors (see below), whose sum is σ = 1176087306240. Its totient is φ = 333730281360.

The previous prime is 669753798983. The next prime is 669753799003. The reversal of 669753798988 is 889897357966.

It is not an unprimeable number, because it can be changed into a prime (669753798983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1708323 + ... + 2063461.

It is an arithmetic number, because the mean of its divisors is an integer number (49003637760).

Almost surely, 2^669753798988 is an apocalyptic number.

It is an amenable number.

669753798988 is a deficient number, since it is larger than the sum of its proper divisors (506333507252).

669753798988 is a wasteful number, since it uses less digits than its factorization.

669753798988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356757 (or 356755 counting only the distinct ones).

The product of its digits is 9876142080, while the sum is 85.

The spelling of 669753798988 in words is "six hundred sixty-nine billion, seven hundred fifty-three million, seven hundred ninety-eight thousand, nine hundred eighty-eight".