16664379508 has 12 divisors (see below), whose sum is σ = 33328759072. Its totient is φ = 7141876920.

The previous prime is 16664379503. The next prime is 16664379509. The reversal of 16664379508 is 80597346661.

16664379508 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16664379503) 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, 297578178 + ... + 297578233.

Almost surely, 2^16664379508 is an apocalyptic number.

It is an amenable number.

16664379508 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16664379508 is a wasteful number, since it uses less digits than its factorization.

16664379508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595156422 (or 595156420 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 16664379508 in words is "sixteen billion, six hundred sixty-four million, three hundred seventy-nine thousand, five hundred eight".