664423119 has 24 divisors (see below), whose sum is σ = 969836400. Its totient is φ = 438307200.

The previous prime is 664423117. The next prime is 664423129. The reversal of 664423119 is 911324466.

664423119 is a `hidden beast` number, since 6 + 644 + 2 + 3 + 1 + 1 + 9 = 666.

It is not a de Polignac number, because 664423119 - 2¹ = 664423117 is a prime.

It is a super-2 number, since 2×664423119² = 882916162123376322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664423117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 368019 + ... + 369819.

It is an arithmetic number, because the mean of its divisors is an integer number (40409850).

Almost surely, 2^664423119 is an apocalyptic number.

664423119 is a deficient number, since it is larger than the sum of its proper divisors (305413281).

664423119 is a wasteful number, since it uses less digits than its factorization.

664423119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2215 (or 2212 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 664423119 is about 25776.4062467986. The cubic root of 664423119 is about 872.5994036766.

The spelling of 664423119 in words is "six hundred sixty-four million, four hundred twenty-three thousand, one hundred nineteen".