14661221624 has 16 divisors (see below), whose sum is σ = 31416903600. Its totient is φ = 6283380672.

The previous prime is 14661221593. The next prime is 14661221629. The reversal of 14661221624 is 42612216641.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14661221629) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 130903709 + ... + 130903820.

It is an arithmetic number, because the mean of its divisors is an integer number (1963556475).

Almost surely, 2^14661221624 is an apocalyptic number.

14661221624 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

14661221624 is an abundant number, since it is smaller than the sum of its proper divisors (16755681976).

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

14661221624 is a wasteful number, since it uses less digits than its factorization.

14661221624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261807542 (or 261807538 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The spelling of 14661221624 in words is "fourteen billion, six hundred sixty-one million, two hundred twenty-one thousand, six hundred twenty-four".