22155441504 has 48 divisors (see below), whose sum is σ = 66466326528. Its totient is φ = 6330125952.

The previous prime is 22155441481. The next prime is 22155441551. The reversal of 22155441504 is 40514455122.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 16484032 + ... + 16485375.

It is an arithmetic number, because the mean of its divisors is an integer number (1384715136).

Almost surely, 2^22155441504 is an apocalyptic number.

22155441504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22155441504 is an abundant number, since it is smaller than the sum of its proper divisors (44310885024).

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

22155441504 is a wasteful number, since it uses less digits than its factorization.

22155441504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32969427 (or 32969419 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 33.

Adding to 22155441504 its reverse (40514455122), we get a palindrome (62669896626).

The spelling of 22155441504 in words is "twenty-two billion, one hundred fifty-five million, four hundred forty-one thousand, five hundred four".