22720664310 has 64 divisors (see below), whose sum is σ = 57064089600. Its totient is φ = 5778748800.

The previous prime is 22720664293. The next prime is 22720664381. The reversal of 22720664310 is 1346602722.

It is a super-2 number, since 2×22720664310² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 193635 + ... + 287985.

It is an arithmetic number, because the mean of its divisors is an integer number (891626400).

Almost surely, 2^22720664310 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22720664310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28532044800).

22720664310 is an abundant number, since it is smaller than the sum of its proper divisors (34343425290).

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

22720664310 is a wasteful number, since it uses less digits than its factorization.

22720664310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94733.

The product of its (nonzero) digits is 24192, while the sum is 33.

The spelling of 22720664310 in words is "twenty-two billion, seven hundred twenty million, six hundred sixty-four thousand, three hundred ten".