144640360163640 has 128 divisors (see below), whose sum is σ = 473372394969600. Its totient is φ = 35064037624320.

The previous prime is 144640360163609. The next prime is 144640360163641. The reversal of 144640360163640 is 46361063046441.

It is a self number, because there is not a number n which added to its sum of digits gives 144640360163640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144640360163641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 187296226 + ... + 188066894.

It is an arithmetic number, because the mean of its divisors is an integer number (3698221835700).

Almost surely, 2^{144640360163640} is an apocalyptic number.

144640360163640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144640360163640 is an abundant number, since it is smaller than the sum of its proper divisors (328732034805960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144640360163640 is a wasteful number, since it uses less digits than its factorization.

144640360163640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912877 (or 912873 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 48.

The spelling of 144640360163640 in words is "one hundred forty-four trillion, six hundred forty billion, three hundred sixty million, one hundred sixty-three thousand, six hundred forty".