144666909987 has 8 divisors (see below), whose sum is σ = 192910033680. Its totient is φ = 96434196480.

The previous prime is 144666909931. The next prime is 144666910051. The reversal of 144666909987 is 789909666441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 144666909987 - 2²⁰ = 144665861411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144666909917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2570062 + ... + 2625747.

It is an arithmetic number, because the mean of its divisors is an integer number (24113754210).

Almost surely, 2^144666909987 is an apocalyptic number.

144666909987 is a deficient number, since it is larger than the sum of its proper divisors (48243123693).

144666909987 is an equidigital number, since it uses as much as digits as its factorization.

144666909987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5205093.

The product of its (nonzero) digits is 141087744, while the sum is 69.

The spelling of 144666909987 in words is "one hundred forty-four billion, six hundred sixty-six million, nine hundred nine thousand, nine hundred eighty-seven".