22185486064 has 80 divisors (see below), whose sum is σ = 52727571648. Its totient is φ = 8826126336.

The previous prime is 22185486061. The next prime is 22185486067. The reversal of 22185486064 is 46068458122.

It is an interprime number because it is at equal distance from previous prime (22185486061) and next prime (22185486067).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22185486061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59184 + ... + 218800.

Almost surely, 2^22185486064 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 22185486064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26363785824).

22185486064 is an abundant number, since it is smaller than the sum of its proper divisors (30542085584).

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

22185486064 is a wasteful number, since it uses less digits than its factorization.

22185486064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159722 (or 159716 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 46.

The spelling of 22185486064 in words is "twenty-two billion, one hundred eighty-five million, four hundred eighty-six thousand, sixty-four".