144020116721 has 16 divisors (see below), whose sum is σ = 155377824000. Its totient is φ = 132702530688.

The previous prime is 144020116697. The next prime is 144020116771. The reversal of 144020116721 is 127611020441.

It is a happy number.

It is not a de Polignac number, because 144020116721 - 2¹⁸ = 144019854577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (144020116771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20692040 + ... + 20698998.

It is an arithmetic number, because the mean of its divisors is an integer number (9711114000).

Almost surely, 2^144020116721 is an apocalyptic number.

It is an amenable number.

144020116721 is a deficient number, since it is larger than the sum of its proper divisors (11357707279).

144020116721 is a wasteful number, since it uses less digits than its factorization.

144020116721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9608.

The product of its (nonzero) digits is 2688, while the sum is 29.

The spelling of 144020116721 in words is "one hundred forty-four billion, twenty million, one hundred sixteen thousand, seven hundred twenty-one".