669325847036 has 288 divisors, whose sum is σ = 1560545409024. Its totient is φ = 248101056000.

The previous prime is 669325846993. The next prime is 669325847063. The reversal of 669325847036 is 630748523966.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1237200926 + ... + 1237201466.

It is an arithmetic number, because the mean of its divisors is an integer number (5418560448).

Almost surely, 2^669325847036 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 669325847036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (780272704512).

669325847036 is an abundant number, since it is smaller than the sum of its proper divisors (891219561988).

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

669325847036 is a wasteful number, since it uses less digits than its factorization.

669325847036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881 (or 872 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 59.

The spelling of 669325847036 in words is "six hundred sixty-nine billion, three hundred twenty-five million, eight hundred forty-seven thousand, thirty-six".