664231350 has 48 divisors (see below), whose sum is σ = 1650193488. Its totient is φ = 176816640.

The previous prime is 664231349. The next prime is 664231369. The reversal of 664231350 is 53132466.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88962 + ... + 96138.

It is an arithmetic number, because the mean of its divisors is an integer number (34379031).

Almost surely, 2^664231350 is an apocalyptic number.

664231350 is an abundant number, since it is smaller than the sum of its proper divisors (985962138).

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

664231350 is a wasteful number, since it uses less digits than its factorization.

664231350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7809 (or 7804 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 664231350 is about 25772.6861231033. The cubic root of 664231350 is about 872.5154443179.

The spelling of 664231350 in words is "six hundred sixty-four million, two hundred thirty-one thousand, three hundred fifty".