64221012246 has 64 divisors (see below), whose sum is σ = 130790080512. Its totient is φ = 21020224512.

The previous prime is 64221012241. The next prime is 64221012253.

64221012246 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64221012241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35227291 + ... + 35229113.

It is an arithmetic number, because the mean of its divisors is an integer number (2043595008).

Almost surely, 2^64221012246 is an apocalyptic number.

64221012246 is an abundant number, since it is smaller than the sum of its proper divisors (66569068266).

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

64221012246 is a wasteful number, since it uses less digits than its factorization.

64221012246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2397.

The product of its (nonzero) digits is 9216, while the sum is 30.

It can be divided in two parts, 642210 and 12246, that added together give a palindrome (654456).

The spelling of 64221012246 in words is "sixty-four billion, two hundred twenty-one million, twelve thousand, two hundred forty-six".