22150540552 has 48 divisors (see below), whose sum is σ = 48491550720. Its totient is φ = 9458013600.

The previous prime is 22150540543. The next prime is 22150540571. The reversal of 22150540552 is 25504505122.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1977 + ... + 210487.

It is an arithmetic number, because the mean of its divisors is an integer number (1010240640).

Almost surely, 2^22150540552 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 22150540552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24245775360).

22150540552 is an abundant number, since it is smaller than the sum of its proper divisors (26341010168).

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

22150540552 is a wasteful number, since it uses less digits than its factorization.

22150540552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208802 (or 208791 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 31.

The spelling of 22150540552 in words is "twenty-two billion, one hundred fifty million, five hundred forty thousand, five hundred fifty-two".