669650046 has 32 divisors (see below), whose sum is σ = 1443886080. Its totient is φ = 205822944.

The previous prime is 669650039. The next prime is 669650053. The reversal of 669650046 is 640056966.

It is an interprime number because it is at equal distance from previous prime (669650039) and next prime (669650053).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76911 + ... + 85173.

It is an arithmetic number, because the mean of its divisors is an integer number (45121440).

Almost surely, 2^669650046 is an apocalyptic number.

669650046 is an abundant number, since it is smaller than the sum of its proper divisors (774236034).

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

669650046 is a wasteful number, since it uses less digits than its factorization.

669650046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9320.

The product of its (nonzero) digits is 233280, while the sum is 42.

The square root of 669650046 is about 25877.5973768818. The cubic root of 669650046 is about 874.8816366697.

The spelling of 669650046 in words is "six hundred sixty-nine million, six hundred fifty thousand, forty-six".