144640564412 has 12 divisors (see below), whose sum is σ = 253663005960. Its totient is φ = 72165419856.

The previous prime is 144640564403. The next prime is 144640564421. The reversal of 144640564412 is 214465046441.

It is an interprime number because it is at equal distance from previous prime (144640564403) and next prime (144640564421).

It is a self number, because there is not a number n which added to its sum of digits gives 144640564412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38713487 + ... + 38717222.

It is an arithmetic number, because the mean of its divisors is an integer number (21138583830).

Almost surely, 2^144640564412 is an apocalyptic number.

It is an amenable number.

144640564412 is a deficient number, since it is larger than the sum of its proper divisors (109022441548).

144640564412 is a wasteful number, since it uses less digits than its factorization.

144640564412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77431180 (or 77431178 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 41.

The spelling of 144640564412 in words is "one hundred forty-four billion, six hundred forty million, five hundred sixty-four thousand, four hundred twelve".