143663322551201 has 4 divisors (see below), whose sum is σ = 143666697428100. Its totient is φ = 143659947674304.

The previous prime is 143663322551159. The next prime is 143663322551237. The reversal of 143663322551201 is 102155223366341.

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

It can be written as a sum of positive squares in 2 ways, for example, as 31981015590976 + 111682306960225 = 5655176^2 + 10567985^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143663322551201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143663322551501) 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, 1687374596 + ... + 1687459733.

It is an arithmetic number, because the mean of its divisors is an integer number (35916674357025).

Almost surely, 2^{143663322551201} is an apocalyptic number.

It is an amenable number.

143663322551201 is a deficient number, since it is larger than the sum of its proper divisors (3374876899).

143663322551201 is an equidigital number, since it uses as much as digits as its factorization.

143663322551201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3374876898.

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 143663322551201 in words is "one hundred forty-three trillion, six hundred sixty-three billion, three hundred twenty-two million, five hundred fifty-one thousand, two hundred one".