669553354 has 8 divisors (see below), whose sum is σ = 1014081120. Its totient is φ = 331526316.

The previous prime is 669553349. The next prime is 669553373. The reversal of 669553354 is 453355966.

It is a happy number.

669553354 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1624924 + ... + 1625335.

It is an arithmetic number, because the mean of its divisors is an integer number (126760140).

Almost surely, 2^669553354 is an apocalyptic number.

669553354 is a deficient number, since it is larger than the sum of its proper divisors (344527766).

669553354 is a wasteful number, since it uses less digits than its factorization.

669553354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3250364.

The product of its digits is 1458000, while the sum is 46.

The square root of 669553354 is about 25875.7290525311. The cubic root of 669553354 is about 874.8395260541.

The spelling of 669553354 in words is "six hundred sixty-nine million, five hundred fifty-three thousand, three hundred fifty-four".