664267016 has 32 divisors (see below), whose sum is σ = 1424282880. Its totient is φ = 284515200.

The previous prime is 664267013. The next prime is 664267033. The reversal of 664267016 is 610762466.

664267016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (664267013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147356 + ... + 151796.

It is an arithmetic number, because the mean of its divisors is an integer number (44508840).

Almost surely, 2^664267016 is an apocalyptic number.

It is an amenable number.

664267016 is an abundant number, since it is smaller than the sum of its proper divisors (760015864).

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

664267016 is a wasteful number, since it uses less digits than its factorization.

664267016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7125 (or 7121 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 664267016 is about 25773.3780479005. The cubic root of 664267016 is about 872.5310606534.

The spelling of 664267016 in words is "six hundred sixty-four million, two hundred sixty-seven thousand, sixteen".