22386549906 has 128 divisors (see below), whose sum is σ = 57302784000. Its totient is φ = 6346009152.

The previous prime is 22386549869. The next prime is 22386549919. The reversal of 22386549906 is 60994568322.

It is a happy number.

22386549906 is a `hidden beast` number, since 2 + 2 + 3 + 8 + 6 + 549 + 90 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 63 ways as a sum of consecutive naturals, for example, 43981180 + ... + 43981688.

It is an arithmetic number, because the mean of its divisors is an integer number (447678000).

Almost surely, 2^22386549906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22386549906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28651392000).

22386549906 is an abundant number, since it is smaller than the sum of its proper divisors (34916234094).

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

22386549906 is a wasteful number, since it uses less digits than its factorization.

22386549906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213 (or 1207 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The spelling of 22386549906 in words is "twenty-two billion, three hundred eighty-six million, five hundred forty-nine thousand, nine hundred six".