144457860081 has 16 divisors (see below), whose sum is σ = 197372040768. Its totient is φ = 93925977600.

The previous prime is 144457860059. The next prime is 144457860083. The reversal of 144457860081 is 180068754441.

It is not a de Polignac number, because 144457860081 - 2⁵ = 144457860049 is a prime.

It is a super-2 number, since 2×144457860081² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 144457860081.

It is not an unprimeable number, because it can be changed into a prime (144457860083) 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, 195730 + ... + 572036.

It is an arithmetic number, because the mean of its divisors is an integer number (12335752548).

Almost surely, 2^144457860081 is an apocalyptic number.

It is an amenable number.

144457860081 is a deficient number, since it is larger than the sum of its proper divisors (52914180687).

144457860081 is a wasteful number, since it uses less digits than its factorization.

144457860081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379472.

The product of its (nonzero) digits is 860160, while the sum is 48.

The spelling of 144457860081 in words is "one hundred forty-four billion, four hundred fifty-seven million, eight hundred sixty thousand, eighty-one".