64255999955246 has 32 divisors (see below), whose sum is σ = 107856389279232. Its totient is φ = 28459912452160.

The previous prime is 64255999955183. The next prime is 64255999955249.

It is a happy number.

64255999955246 is nontrivially palindromic in base 10.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64255999955249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136644431 + ... + 137113866.

It is an arithmetic number, because the mean of its divisors is an integer number (3370512164976).

Almost surely, 2^{64255999955246} is an apocalyptic number.

64255999955246 is a deficient number, since it is larger than the sum of its proper divisors (43600389323986).

64255999955246 is a wasteful number, since it uses less digits than its factorization.

64255999955246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273758584.

The product of its digits is 9447840000, while the sum is 80.

The spelling of 64255999955246 in words is "sixty-four trillion, two hundred fifty-five billion, nine hundred ninety-nine million, nine hundred fifty-five thousand, two hundred forty-six".