144699996440 has 16 divisors (see below), whose sum is σ = 325574992080. Its totient is φ = 57879998560.

The previous prime is 144699996431. The next prime is 144699996461. The reversal of 144699996440 is 44699996441.

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, 1808749916 + ... + 1808749995.

It is an arithmetic number, because the mean of its divisors is an integer number (20348437005).

Almost surely, 2^144699996440 is an apocalyptic number.

144699996440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144699996440 is an abundant number, since it is smaller than the sum of its proper divisors (180874995640).

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

144699996440 is a wasteful number, since it uses less digits than its factorization.

144699996440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3617499922 (or 3617499918 counting only the distinct ones).

The product of its (nonzero) digits is 60466176, while the sum is 65.

Subtracting from 144699996440 its reverse (44699996441), we obtain a palindrome (99999999999).

The spelling of 144699996440 in words is "one hundred forty-four billion, six hundred ninety-nine million, nine hundred ninety-six thousand, four hundred forty".