143163055451661 has 16 divisors (see below), whose sum is σ = 218168439669888. Its totient is φ = 81801755640000.

The previous prime is 143163055451473. The next prime is 143163055451683. The reversal of 143163055451661 is 166154550361341.

It is not a de Polignac number, because 143163055451661 - 2¹⁰ = 143163055450637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143163055455661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237384090 + ... + 237986411.

It is an arithmetic number, because the mean of its divisors is an integer number (13635527479368).

Almost surely, 2^{143163055451661} is an apocalyptic number.

It is an amenable number.

143163055451661 is a deficient number, since it is larger than the sum of its proper divisors (75005384218227).

143163055451661 is a wasteful number, since it uses less digits than its factorization.

143163055451661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475384852.

The product of its (nonzero) digits is 3888000, while the sum is 51.

The spelling of 143163055451661 in words is "one hundred forty-three trillion, one hundred sixty-three billion, fifty-five million, four hundred fifty-one thousand, six hundred sixty-one".