669014571 has 4 divisors (see below), whose sum is σ = 892019432. Its totient is φ = 446009712.

The previous prime is 669014557. The next prime is 669014603. The reversal of 669014571 is 175410966.

669014571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 669014571 - 2⁷ = 669014443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (669014471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111502426 + ... + 111502431.

It is an arithmetic number, because the mean of its divisors is an integer number (223004858).

Almost surely, 2^669014571 is an apocalyptic number.

669014571 is a deficient number, since it is larger than the sum of its proper divisors (223004861).

669014571 is a wasteful number, since it uses less digits than its factorization.

669014571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223004860.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 669014571 is about 25865.3159849247. The cubic root of 669014571 is about 874.6048048288.

The spelling of 669014571 in words is "six hundred sixty-nine million, fourteen thousand, five hundred seventy-one".