16667672322064 has 20 divisors (see below), whose sum is σ = 32293712326204. Its totient is φ = 8333811076608.

The previous prime is 16667672322043. The next prime is 16667672322101. The reversal of 16667672322064 is 46022327676661.

It can be written as a sum of positive squares in 2 ways, for example, as 682804742400 + 15984867579664 = 826320^2 + 3998108^2 .

It is a super-2 number, since 2×16667672322064² (a number of 27 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 4664884 + ... + 7422700.

Almost surely, 2^{16667672322064} is an apocalyptic number.

It is an amenable number.

16667672322064 is a deficient number, since it is larger than the sum of its proper divisors (15626040004140).

16667672322064 is a wasteful number, since it uses less digits than its factorization.

16667672322064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3135562 (or 3135556 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 58.

The spelling of 16667672322064 in words is "sixteen trillion, six hundred sixty-seven billion, six hundred seventy-two million, three hundred twenty-two thousand, sixty-four".