144504521650161 has 12 divisors (see below), whose sum is σ = 209004485015092. Its totient is φ = 96209087065056.

The previous prime is 144504521650133. The next prime is 144504521650201. The reversal of 144504521650161 is 161056125405441.

It is a happy number.

144504521650161 is a `hidden beast` number, since 1 + 4 + 4 + 5 + 0 + 4 + 521 + 65 + 0 + 1 + 61 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 43579010073600 + 100925511576561 = 6601440^2 + 10046169^2 .

It is not a de Polignac number, because 144504521650161 - 2¹⁴ = 144504521633777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144504521650121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10605051286 + ... + 10605064911.

Almost surely, 2^{144504521650161} is an apocalyptic number.

It is an amenable number.

144504521650161 is a deficient number, since it is larger than the sum of its proper divisors (64499963364931).

144504521650161 is a wasteful number, since it uses less digits than its factorization.

144504521650161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21210116960 (or 21210116957 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 45.

The spelling of 144504521650161 in words is "one hundred forty-four trillion, five hundred four billion, five hundred twenty-one million, six hundred fifty thousand, one hundred sixty-one".