143640403456645 has 16 divisors (see below), whose sum is σ = 172407363436800. Its totient is φ = 114886405670400.

The previous prime is 143640403456639. The next prime is 143640403456661. The reversal of 143640403456645 is 546654304046341.

It is a de Polignac number, because none of the positive numbers 2^k-143640403456645 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 510688000 + ... + 510969190.

It is an arithmetic number, because the mean of its divisors is an integer number (10775460214800).

Almost surely, 2^{143640403456645} is an apocalyptic number.

It is an amenable number.

143640403456645 is a deficient number, since it is larger than the sum of its proper divisors (28766959980155).

143640403456645 is a wasteful number, since it uses less digits than its factorization.

143640403456645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303876.

The product of its (nonzero) digits is 49766400, while the sum is 55.

The spelling of 143640403456645 in words is "one hundred forty-three trillion, six hundred forty billion, four hundred three million, four hundred fifty-six thousand, six hundred forty-five".