64222116380 has 24 divisors (see below), whose sum is σ = 137077372320. Its totient is φ = 25267717440.

The previous prime is 64222116347. The next prime is 64222116389. The reversal of 64222116380 is 8361122246.

It is a self number, because there is not a number n which added to its sum of digits gives 64222116380.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64222116389) 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, 26319320 + ... + 26321759.

It is an arithmetic number, because the mean of its divisors is an integer number (5711557180).

Almost surely, 2^64222116380 is an apocalyptic number.

It is an amenable number.

64222116380 is an abundant number, since it is smaller than the sum of its proper divisors (72855255940).

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

64222116380 is a wasteful number, since it uses less digits than its factorization.

64222116380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52641149 (or 52641147 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The spelling of 64222116380 in words is "sixty-four billion, two hundred twenty-two million, one hundred sixteen thousand, three hundred eighty".