22150541550 has 48 divisors (see below), whose sum is σ = 55128940272. Its totient is φ = 5885779200.

The previous prime is 22150541531. The next prime is 22150541587. The reversal of 22150541550 is 5514505122.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 220609 + ... + 304908.

It is an arithmetic number, because the mean of its divisors is an integer number (1148519589).

Almost surely, 2^22150541550 is an apocalyptic number.

22150541550 is an abundant number, since it is smaller than the sum of its proper divisors (32978398722).

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

22150541550 is a wasteful number, since it uses less digits than its factorization.

22150541550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525813 (or 525808 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 30.

The spelling of 22150541550 in words is "twenty-two billion, one hundred fifty million, five hundred forty-one thousand, five hundred fifty".