64221500512246 has 64 divisors (see below), whose sum is σ = 121209381596160. Its totient is φ = 24790792037760.

The previous prime is 64221500512231. The next prime is 64221500512277.

64221500512246 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×64221500512246² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64221500512199 and 64221500512208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 505749055 + ... + 505876021.

It is an arithmetic number, because the mean of its divisors is an integer number (1893896587440).

Almost surely, 2^{64221500512246} is an apocalyptic number.

64221500512246 is a deficient number, since it is larger than the sum of its proper divisors (56987881083914).

64221500512246 is a wasteful number, since it uses less digits than its factorization.

64221500512246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157229.

The product of its (nonzero) digits is 230400, while the sum is 40.

It can be divided in two parts, 64221500 and 512246, that added together give a palindrome (64733746).

The spelling of 64221500512246 in words is "sixty-four trillion, two hundred twenty-one billion, five hundred million, five hundred twelve thousand, two hundred forty-six".