64712317466 has 16 divisors (see below), whose sum is σ = 98914077288. Its totient is φ = 31741132800.

The previous prime is 64712317451. The next prime is 64712317477. The reversal of 64712317466 is 66471321746.

It can be written as a sum of positive squares in 4 ways, for example, as 62657599225 + 2054718241 = 250315^2 + 45329^2 .

It is a super-2 number, since 2×64712317466² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64712317466.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 774446 + ... + 853926.

Almost surely, 2^64712317466 is an apocalyptic number.

64712317466 is a deficient number, since it is larger than the sum of its proper divisors (34201759822).

64712317466 is a wasteful number, since it uses less digits than its factorization.

64712317466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87217.

The product of its digits is 1016064, while the sum is 47.

The spelling of 64712317466 in words is "sixty-four billion, seven hundred twelve million, three hundred seventeen thousand, four hundred sixty-six".