669536910 has 96 divisors (see below), whose sum is σ = 1994803200. Its totient is φ = 152627904.

The previous prime is 669536909. The next prime is 669536957. The reversal of 669536910 is 19635966.

669536910 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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, 277891 + ... + 280289.

It is an arithmetic number, because the mean of its divisors is an integer number (20779200).

Almost surely, 2^669536910 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 669536910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (997401600).

669536910 is an abundant number, since it is smaller than the sum of its proper divisors (1325266290).

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

669536910 is a wasteful number, since it uses less digits than its factorization.

669536910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2862 (or 2859 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 45.

The square root of 669536910 is about 25875.4113010789. The cubic root of 669536910 is about 874.8323640762.

The spelling of 669536910 in words is "six hundred sixty-nine million, five hundred thirty-six thousand, nine hundred ten".