143163433650661 has 16 divisors (see below), whose sum is σ = 144822767975424. Its totient is φ = 141516059658624.

The previous prime is 143163433650617. The next prime is 143163433650673. The reversal of 143163433650661 is 166056334361341.

It is a cyclic number.

It is not a de Polignac number, because 143163433650661 - 2⁷ = 143163433650533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143163433650599 and 143163433650608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143163433650961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18857905 + ... + 25336681.

It is an arithmetic number, because the mean of its divisors is an integer number (9051422998464).

Almost surely, 2^{143163433650661} is an apocalyptic number.

It is an amenable number.

143163433650661 is a deficient number, since it is larger than the sum of its proper divisors (1659334324763).

143163433650661 is a wasteful number, since it uses less digits than its factorization.

143163433650661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6479700.

The product of its (nonzero) digits is 8398080, while the sum is 52.

The spelling of 143163433650661 in words is "one hundred forty-three trillion, one hundred sixty-three billion, four hundred thirty-three million, six hundred fifty thousand, six hundred sixty-one".