144640564055 has 16 divisors (see below), whose sum is σ = 186964647744. Its totient is φ = 106786045440.

The previous prime is 144640564051. The next prime is 144640564067. The reversal of 144640564055 is 550465046441.

It is not a de Polignac number, because 144640564055 - 2² = 144640564051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144640563997 and 144640564015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144640564051) 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, 12047 + ... + 537983.

It is an arithmetic number, because the mean of its divisors is an integer number (11685290484).

Almost surely, 2^144640564055 is an apocalyptic number.

144640564055 is a deficient number, since it is larger than the sum of its proper divisors (42324083689).

144640564055 is a wasteful number, since it uses less digits than its factorization.

144640564055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530186.

The product of its (nonzero) digits is 1152000, while the sum is 44.

The spelling of 144640564055 in words is "one hundred forty-four billion, six hundred forty million, five hundred sixty-four thousand, fifty-five".