669745410 has 64 divisors (see below), whose sum is σ = 1633927680. Its totient is φ = 175668480.

The previous prime is 669745393. The next prime is 669745429. The reversal of 669745410 is 14547966.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1092264 + ... + 1092876.

It is an arithmetic number, because the mean of its divisors is an integer number (25530120).

Almost surely, 2^669745410 is an apocalyptic number.

669745410 is an abundant number, since it is smaller than the sum of its proper divisors (964182270).

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

669745410 is a wasteful number, since it uses less digits than its factorization.

669745410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 669745410 is about 25879.4399089316. The cubic root of 669745410 is about 874.9231649539.

The spelling of 669745410 in words is "six hundred sixty-nine million, seven hundred forty-five thousand, four hundred ten".