22006155450 has 48 divisors (see below), whose sum is σ = 54601880256. Its totient is φ = 5865446400.

The previous prime is 22006155443. The next prime is 22006155469. The reversal of 22006155450 is 5455160022.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 282235 + ... + 351665.

It is an arithmetic number, because the mean of its divisors is an integer number (1137539172).

Almost surely, 2^22006155450 is an apocalyptic number.

22006155450 is an abundant number, since it is smaller than the sum of its proper divisors (32595724806).

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

22006155450 is a wasteful number, since it uses less digits than its factorization.

22006155450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71559 (or 71554 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 22006155450 in words is "twenty-two billion, six million, one hundred fifty-five thousand, four hundred fifty".