144222216540 has 48 divisors (see below), whose sum is σ = 403934582688. Its totient is φ = 38448555264.

The previous prime is 144222216539. The next prime is 144222216623. The reversal of 144222216540 is 45612222441.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115867 + ... + 549426.

It is an arithmetic number, because the mean of its divisors is an integer number (8415303806).

Almost surely, 2^144222216540 is an apocalyptic number.

144222216540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144222216540 is an abundant number, since it is smaller than the sum of its proper divisors (259712366148).

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

144222216540 is a wasteful number, since it uses less digits than its factorization.

144222216540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668918 (or 668916 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

Adding to 144222216540 its reverse (45612222441), we get a palindrome (189834438981).

The spelling of 144222216540 in words is "one hundred forty-four billion, two hundred twenty-two million, two hundred sixteen thousand, five hundred forty".