144611163621 has 32 divisors (see below), whose sum is σ = 221711952000. Its totient is φ = 93047076864.

The previous prime is 144611163617. The next prime is 144611163637. The reversal of 144611163621 is 126361116441.

144611163621 is a `hidden beast` number, since 1 + 4 + 4 + 6 + 1 + 11 + 636 + 2 + 1 = 666.

It is not a de Polignac number, because 144611163621 - 2² = 144611163617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144611123621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2071146 + ... + 2139828.

It is an arithmetic number, because the mean of its divisors is an integer number (6928498500).

Almost surely, 2^144611163621 is an apocalyptic number.

It is an amenable number.

144611163621 is a deficient number, since it is larger than the sum of its proper divisors (77100788379).

144611163621 is a wasteful number, since it uses less digits than its factorization.

144611163621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71410 (or 71404 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The spelling of 144611163621 in words is "one hundred forty-four billion, six hundred eleven million, one hundred sixty-three thousand, six hundred twenty-one".