64220363088 has 160 divisors (see below), whose sum is σ = 198142365696. Its totient is φ = 17540457984.

The previous prime is 64220363083. The next prime is 64220363117. The reversal of 64220363088 is 88036302246.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64220363083) 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, 631770 + ... + 726342.

Almost surely, 2^64220363088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64220363088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99071182848).

64220363088 is an abundant number, since it is smaller than the sum of its proper divisors (133922002608).

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

64220363088 is a wasteful number, since it uses less digits than its factorization.

64220363088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94681 (or 94675 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 42.

The spelling of 64220363088 in words is "sixty-four billion, two hundred twenty million, three hundred sixty-three thousand, eighty-eight".