144061261646 has 16 divisors (see below), whose sum is σ = 218844600000. Its totient is φ = 71113206528.

The previous prime is 144061261627. The next prime is 144061261651. The reversal of 144061261646 is 646162160441.

It is a congruent number.

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, 2539286 + ... + 2595398.

It is an arithmetic number, because the mean of its divisors is an integer number (13677787500).

Almost surely, 2^144061261646 is an apocalyptic number.

144061261646 is a deficient number, since it is larger than the sum of its proper divisors (74783338354).

144061261646 is a wasteful number, since it uses less digits than its factorization.

144061261646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72443.

The product of its (nonzero) digits is 165888, while the sum is 41.

The spelling of 144061261646 in words is "one hundred forty-four billion, sixty-one million, two hundred sixty-one thousand, six hundred forty-six".