144646135646 has 4 divisors (see below), whose sum is σ = 216969203472. Its totient is φ = 72323067822.

The previous prime is 144646135583. The next prime is 144646135651. The reversal of 144646135646 is 646531646441.

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

It is a junction number, because it is equal to n+sod(n) for n = 144646135594 and 144646135603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36161533910 + ... + 36161533913.

It is an arithmetic number, because the mean of its divisors is an integer number (54242300868).

Almost surely, 2^144646135646 is an apocalyptic number.

144646135646 is a deficient number, since it is larger than the sum of its proper divisors (72323067826).

144646135646 is an equidigital number, since it uses as much as digits as its factorization.

144646135646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72323067825.

The product of its digits is 4976640, while the sum is 50.

The spelling of 144646135646 in words is "one hundred forty-four billion, six hundred forty-six million, one hundred thirty-five thousand, six hundred forty-six".