64614441646 has 16 divisors (see below), whose sum is σ = 97583874048. Its totient is φ = 32087021400.

The previous prime is 64614441611. The next prime is 64614441743.

It is a happy number.

64614441646 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 64614441596 and 64614441605.

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 7 ways as a sum of consecutive naturals, for example, 107011 + ... + 375073.

It is an arithmetic number, because the mean of its divisors is an integer number (6098992128).

Almost surely, 2^64614441646 is an apocalyptic number.

64614441646 is a deficient number, since it is larger than the sum of its proper divisors (32969432402).

64614441646 is a wasteful number, since it uses less digits than its factorization.

64614441646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268887.

The product of its digits is 1327104, while the sum is 46.

The spelling of 64614441646 in words is "sixty-four billion, six hundred fourteen million, four hundred forty-one thousand, six hundred forty-six".