143646234321136 has 40 divisors (see below), whose sum is σ = 288018553539024. Its totient is φ = 69348501780480.

The previous prime is 143646234321133. The next prime is 143646234321169. The reversal of 143646234321136 is 631123432646341.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 143646234321136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143646234321133) 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, 926050945 + ... + 926206048.

Almost surely, 2^{143646234321136} is an apocalyptic number.

143646234321136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

143646234321136 is an abundant number, since it is smaller than the sum of its proper divisors (144372319217888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143646234321136 is a wasteful number, since it uses less digits than its factorization.

143646234321136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1852257169 (or 1852257163 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 49.

Adding to 143646234321136 its reverse (631123432646341), we get a palindrome (774769666967477).

The spelling of 143646234321136 in words is "one hundred forty-three trillion, six hundred forty-six billion, two hundred thirty-four million, three hundred twenty-one thousand, one hundred thirty-six".