664237000328 has 16 divisors (see below), whose sum is σ = 1358666591760. Its totient is φ = 301925909200.

The previous prime is 664237000247. The next prime is 664237000367. The reversal of 664237000328 is 823000732466.

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, 3774073778 + ... + 3774073953.

It is an arithmetic number, because the mean of its divisors is an integer number (84916661985).

Almost surely, 2^664237000328 is an apocalyptic number.

It is an amenable number.

664237000328 is an abundant number, since it is smaller than the sum of its proper divisors (694429591432).

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

664237000328 is a wasteful number, since it uses less digits than its factorization.

664237000328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7548147748 (or 7548147744 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 41.

The spelling of 664237000328 in words is "six hundred sixty-four billion, two hundred thirty-seven million, three hundred twenty-eight", and thus it is an aban number.