143663320461 has 8 divisors (see below), whose sum is σ = 194691276064. Its totient is φ = 94205455920.

The previous prime is 143663320439. The next prime is 143663320477. The reversal of 143663320461 is 164023366341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 143663320461 - 2²¹ = 143661223309 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 (143663325461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392522551 + ... + 392522916.

It is an arithmetic number, because the mean of its divisors is an integer number (24336409508).

Almost surely, 2^143663320461 is an apocalyptic number.

It is an amenable number.

143663320461 is a deficient number, since it is larger than the sum of its proper divisors (51027955603).

143663320461 is an equidigital number, since it uses as much as digits as its factorization.

143663320461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785045531.

The product of its (nonzero) digits is 186624, while the sum is 39.

The spelling of 143663320461 in words is "one hundred forty-three billion, six hundred sixty-three million, three hundred twenty thousand, four hundred sixty-one".