22143151332440 has 16 divisors (see below), whose sum is σ = 49822090498080. Its totient is φ = 8857260532960.

The previous prime is 22143151332353. The next prime is 22143151332473. The reversal of 22143151332440 is 4423315134122.

It is a self number, because there is not a number n which added to its sum of digits gives 22143151332440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276789391616 + ... + 276789391695.

It is an arithmetic number, because the mean of its divisors is an integer number (3113880656130).

Almost surely, 2^{22143151332440} is an apocalyptic number.

22143151332440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22143151332440 is an abundant number, since it is smaller than the sum of its proper divisors (27678939165640).

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

22143151332440 is a wasteful number, since it uses less digits than its factorization.

22143151332440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553578783322 (or 553578783318 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 22143151332440 its reverse (4423315134122), we get a palindrome (26566466466562).

The spelling of 22143151332440 in words is "twenty-two trillion, one hundred forty-three billion, one hundred fifty-one million, three hundred thirty-two thousand, four hundred forty".