144640564071 has 8 divisors (see below), whose sum is σ = 201239045760. Its totient is φ = 92234562552.

The previous prime is 144640564067. The next prime is 144640564141. The reversal of 144640564071 is 170465046441.

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

It is not a de Polignac number, because 144640564071 - 2² = 144640564067 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144640564031) 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, 1048119961 + ... + 1048120098.

It is an arithmetic number, because the mean of its divisors is an integer number (25154880720).

Almost surely, 2^144640564071 is an apocalyptic number.

144640564071 is a deficient number, since it is larger than the sum of its proper divisors (56598481689).

144640564071 is a wasteful number, since it uses less digits than its factorization.

144640564071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2096240085.

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 144640564071 in words is "one hundred forty-four billion, six hundred forty million, five hundred sixty-four thousand, seventy-one".