144064554516561 has 16 divisors (see below), whose sum is σ = 219527125577600. Its totient is φ = 82322533070208.

The previous prime is 144064554516523. The next prime is 144064554516599. The reversal of 144064554516561 is 165615455460441.

It is an interprime number because it is at equal distance from previous prime (144064554516523) and next prime (144064554516599).

It is not a de Polignac number, because 144064554516561 - 2⁶ = 144064554516497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144064554516661) 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, 32795205 + ... + 36927693.

It is an arithmetic number, because the mean of its divisors is an integer number (13720445348600).

Almost surely, 2^{144064554516561} is an apocalyptic number.

It is an amenable number.

144064554516561 is a deficient number, since it is larger than the sum of its proper divisors (75462571061039).

144064554516561 is a wasteful number, since it uses less digits than its factorization.

144064554516561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5792568.

The product of its (nonzero) digits is 34560000, while the sum is 57.

The spelling of 144064554516561 in words is "one hundred forty-four trillion, sixty-four billion, five hundred fifty-four million, five hundred sixteen thousand, five hundred sixty-one".