664273062 has 192 divisors, whose sum is σ = 1694032704. Its totient is φ = 194088960.

The previous prime is 664273037. The next prime is 664273081. The reversal of 664273062 is 260372466.

It is a happy number.

664273062 is a `hidden beast` number, since 6 + 642 + 7 + 3 + 0 + 6 + 2 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12533428 + ... + 12533480.

It is an arithmetic number, because the mean of its divisors is an integer number (8823087).

Almost surely, 2^664273062 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 664273062, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (847016352).

664273062 is an abundant number, since it is smaller than the sum of its proper divisors (1029759642).

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

664273062 is a wasteful number, since it uses less digits than its factorization.

664273062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 664273062 is about 25773.4953392046. The cubic root of 664273062 is about 872.5337078353.

The spelling of 664273062 in words is "six hundred sixty-four million, two hundred seventy-three thousand, sixty-two".