664158430 has 32 divisors (see below), whose sum is σ = 1288935648. Its totient is φ = 244944000.

The previous prime is 664158409. The next prime is 664158487. The reversal of 664158430 is 34851466.

It is a happy number.

664158430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×664158430² = 882212840280129800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 664158430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134200 + ... + 139060.

It is an arithmetic number, because the mean of its divisors is an integer number (40279239).

Almost surely, 2^664158430 is an apocalyptic number.

664158430 is a deficient number, since it is larger than the sum of its proper divisors (624777218).

664158430 is a wasteful number, since it uses less digits than its factorization.

664158430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5932.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 664158430 is about 25771.2714082949. The cubic root of 664158430 is about 872.4835146022.

The spelling of 664158430 in words is "six hundred sixty-four million, one hundred fifty-eight thousand, four hundred thirty".