664424404152 has 32 divisors (see below), whose sum is σ = 1701574696080. Its totient is φ = 216072976640.

The previous prime is 664424404151. The next prime is 664424404157. The reversal of 664424404152 is 251404424466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664424404151) 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, 337613043 + ... + 337615010.

Almost surely, 2^664424404152 is an apocalyptic number.

It is an amenable number.

664424404152 is an abundant number, since it is smaller than the sum of its proper divisors (1037150291928).

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

664424404152 is a wasteful number, since it uses less digits than its factorization.

664424404152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675228103 (or 675228099 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 42.

The spelling of 664424404152 in words is "six hundred sixty-four billion, four hundred twenty-four million, four hundred four thousand, one hundred fifty-two".