14720122640 has 40 divisors (see below), whose sum is σ = 34234291008. Its totient is φ = 5886327680.

The previous prime is 14720122631. The next prime is 14720122667. The reversal of 14720122640 is 4622102741.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268619 + ... + 318741.

Almost surely, 2^14720122640 is an apocalyptic number.

14720122640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14720122640 is an abundant number, since it is smaller than the sum of its proper divisors (19514168368).

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

14720122640 is a wasteful number, since it uses less digits than its factorization.

14720122640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53807 (or 53801 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The spelling of 14720122640 in words is "fourteen billion, seven hundred twenty million, one hundred twenty-two thousand, six hundred forty".