64889474271606 has 24 divisors (see below), whose sum is σ = 140594149350720. Its totient is φ = 21629780383536.

The previous prime is 64889474271571. The next prime is 64889474271647. The reversal of 64889474271606 is 60617247498846.

64889474271606 is a `hidden beast` number, since 6 + 4 + 8 + 8 + 9 + 4 + 7 + 4 + 2 + 7 + 1 + 606 = 666.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 6008571 + ... + 12879513.

It is an arithmetic number, because the mean of its divisors is an integer number (5858089556280).

Almost surely, 2^{64889474271606} is an apocalyptic number.

64889474271606 is an abundant number, since it is smaller than the sum of its proper divisors (75704675079114).

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

64889474271606 is a wasteful number, since it uses less digits than its factorization.

64889474271606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7395620 (or 7395617 counting only the distinct ones).

The product of its (nonzero) digits is 780337152, while the sum is 72.

The spelling of 64889474271606 in words is "sixty-four trillion, eight hundred eighty-nine billion, four hundred seventy-four million, two hundred seventy-one thousand, six hundred six".