143663446540663 has 4 divisors (see below), whose sum is σ = 164186796046480. Its totient is φ = 123140097034848.

The previous prime is 143663446540657. The next prime is 143663446540739. The reversal of 143663446540663 is 366045644366341.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143663446540663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143663446540963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10261674752898 + ... + 10261674752911.

It is an arithmetic number, because the mean of its divisors is an integer number (41046699011620).

Almost surely, 2^{143663446540663} is an apocalyptic number.

143663446540663 is a deficient number, since it is larger than the sum of its proper divisors (20523349505817).

143663446540663 is an equidigital number, since it uses as much as digits as its factorization.

143663446540663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20523349505816.

The product of its (nonzero) digits is 268738560, while the sum is 61.

The spelling of 143663446540663 in words is "one hundred forty-three trillion, six hundred sixty-three billion, four hundred forty-six million, five hundred forty thousand, six hundred sixty-three".