664152116 has 12 divisors (see below), whose sum is σ = 1184196132. Its totient is φ = 325810368.

The previous prime is 664152077. The next prime is 664152119. The reversal of 664152116 is 611251466.

It can be written as a sum of positive squares in 2 ways, for example, as 456676900 + 207475216 = 21370^2 + 14404^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664152119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1566185 + ... + 1566608.

It is an arithmetic number, because the mean of its divisors is an integer number (98683011).

Almost surely, 2^664152116 is an apocalyptic number.

It is an amenable number.

664152116 is a deficient number, since it is larger than the sum of its proper divisors (520044016).

664152116 is a wasteful number, since it uses less digits than its factorization.

664152116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3132850 (or 3132848 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 664152116 is about 25771.1489072567. The cubic root of 664152116 is about 872.4807497607.

The spelling of 664152116 in words is "six hundred sixty-four million, one hundred fifty-two thousand, one hundred sixteen".