143132201221646 has 192 divisors, whose sum is σ = 280736868202560. Its totient is φ = 54181161216000.

The previous prime is 143132201221643. The next prime is 143132201221703. The reversal of 143132201221646 is 646122102231341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143132201221643) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3683164256 + ... + 3683203116.

It is an arithmetic number, because the mean of its divisors is an integer number (1462171188555).

Almost surely, 2^{143132201221646} is an apocalyptic number.

143132201221646 is a deficient number, since it is larger than the sum of its proper divisors (137604666980914).

143132201221646 is a wasteful number, since it uses less digits than its factorization.

143132201221646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39811 (or 39804 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

Adding to 143132201221646 its reverse (646122102231341), we get a palindrome (789254303452987).

The spelling of 143132201221646 in words is "one hundred forty-three trillion, one hundred thirty-two billion, two hundred one million, two hundred twenty-one thousand, six hundred forty-six".