144620356165 has 4 divisors (see below), whose sum is σ = 173544427404. Its totient is φ = 115696284928.

The previous prime is 144620356123. The next prime is 144620356183. The reversal of 144620356165 is 561653026441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 78220343041 + 66400013124 = 279679^2 + 257682^2 .

It is a cyclic number.

It is not a de Polignac number, because 144620356165 - 2¹⁷ = 144620225093 is a prime.

It is a Duffinian number.

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, 14462035612 + ... + 14462035621.

It is an arithmetic number, because the mean of its divisors is an integer number (43386106851).

Almost surely, 2^144620356165 is an apocalyptic number.

It is an amenable number.

144620356165 is a deficient number, since it is larger than the sum of its proper divisors (28924071239).

144620356165 is an equidigital number, since it uses as much as digits as its factorization.

144620356165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28924071238.

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 144620356165 in words is "one hundred forty-four billion, six hundred twenty million, three hundred fifty-six thousand, one hundred sixty-five".