144653115621 has 16 divisors (see below), whose sum is σ = 221697926784. Its totient is φ = 82181123904.

The previous prime is 144653115557. The next prime is 144653115707. The reversal of 144653115621 is 126511356441.

It is not a de Polignac number, because 144653115621 - 2⁶ = 144653115557 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144653115621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144653115121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19904586 + ... + 19911851.

It is an arithmetic number, because the mean of its divisors is an integer number (13856120424).

Almost surely, 2^144653115621 is an apocalyptic number.

It is an amenable number.

144653115621 is a deficient number, since it is larger than the sum of its proper divisors (77044811163).

144653115621 is a wasteful number, since it uses less digits than its factorization.

144653115621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39816620.

The product of its digits is 86400, while the sum is 39.

The spelling of 144653115621 in words is "one hundred forty-four billion, six hundred fifty-three million, one hundred fifteen thousand, six hundred twenty-one".