64523335066 has 16 divisors (see below), whose sum is σ = 102483307944. Its totient is φ = 30362420224.

The previous prime is 64523335043. The next prime is 64523335067. The reversal of 64523335066 is 66053332546.

It can be written as a sum of positive squares in 4 ways, for example, as 59647804441 + 4875530625 = 244229^2 + 69825^2 .

It is not an unprimeable number, because it can be changed into a prime (64523335067) 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, 969186 + ... + 1033618.

Almost surely, 2^64523335066 is an apocalyptic number.

64523335066 is a deficient number, since it is larger than the sum of its proper divisors (37959972878).

64523335066 is a wasteful number, since it uses less digits than its factorization.

64523335066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93905.

The product of its (nonzero) digits is 1166400, while the sum is 43.

The spelling of 64523335066 in words is "sixty-four billion, five hundred twenty-three million, three hundred thirty-five thousand, sixty-six".