143187712421668 has 12 divisors (see below), whose sum is σ = 250579569027760. Its totient is φ = 71593549842312.

The previous prime is 143187712421653. The next prime is 143187712421729. The reversal of 143187712421668 is 866124217781341.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 75538938 + ... + 77411281.

Almost surely, 2^{143187712421668} is an apocalyptic number.

It is an amenable number.

143187712421668 is a deficient number, since it is larger than the sum of its proper divisors (107391856606092).

143187712421668 is a wasteful number, since it uses less digits than its factorization.

143187712421668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153184266 (or 153184264 counting only the distinct ones).

The product of its digits is 21676032, while the sum is 61.

The spelling of 143187712421668 in words is "one hundred forty-three trillion, one hundred eighty-seven billion, seven hundred twelve million, four hundred twenty-one thousand, six hundred sixty-eight".