144561520442771 has 8 divisors (see below), whose sum is σ = 145140126357744. Its totient is φ = 143982935668000.

The previous prime is 144561520442767. The next prime is 144561520442813. The reversal of 144561520442771 is 177244025165441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144561520442771 - 2² = 144561520442767 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144561520442971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8490485 + ... + 19005561.

It is an arithmetic number, because the mean of its divisors is an integer number (18142515794718).

Almost surely, 2^{144561520442771} is an apocalyptic number.

144561520442771 is a deficient number, since it is larger than the sum of its proper divisors (578605914973).

144561520442771 is a wasteful number, since it uses less digits than its factorization.

144561520442771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10570101.

The product of its (nonzero) digits is 7526400, while the sum is 53.

The spelling of 144561520442771 in words is "one hundred forty-four trillion, five hundred sixty-one billion, five hundred twenty million, four hundred forty-two thousand, seven hundred seventy-one".