669527319228 has 48 divisors (see below), whose sum is σ = 1569188517120. Its totient is φ = 222183206784.

The previous prime is 669527319211. The next prime is 669527319247. The reversal of 669527319228 is 822913725966.

669527319228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3635553 + ... + 3815271.

It is an arithmetic number, because the mean of its divisors is an integer number (32691427440).

Almost surely, 2^669527319228 is an apocalyptic number.

It is an amenable number.

669527319228 is an abundant number, since it is smaller than the sum of its proper divisors (899661197892).

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

669527319228 is a wasteful number, since it uses less digits than its factorization.

669527319228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181106 (or 181104 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 60.

The spelling of 669527319228 in words is "six hundred sixty-nine billion, five hundred twenty-seven million, three hundred nineteen thousand, two hundred twenty-eight".