64221203704 has 32 divisors (see below), whose sum is σ = 143600209920. Its totient is φ = 26326704096.

The previous prime is 64221203701. The next prime is 64221203713. The reversal of 64221203704 is 40730212246.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64221203701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24929304 + ... + 24931879.

It is an arithmetic number, because the mean of its divisors is an integer number (4487506560).

Almost surely, 2^64221203704 is an apocalyptic number.

It is an amenable number.

64221203704 is an abundant number, since it is smaller than the sum of its proper divisors (79379006216).

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

64221203704 is a wasteful number, since it uses less digits than its factorization.

64221203704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49861219 (or 49861215 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The spelling of 64221203704 in words is "sixty-four billion, two hundred twenty-one million, two hundred three thousand, seven hundred four".