143255645661 has 8 divisors (see below), whose sum is σ = 191013257824. Its totient is φ = 95500898640.

The previous prime is 143255645653. The next prime is 143255645671. The reversal of 143255645661 is 166546552341.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 143255645661 - 2³ = 143255645653 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 143255645661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143255645671) 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, 596770 + ... + 801651.

It is an arithmetic number, because the mean of its divisors is an integer number (23876657228).

Almost surely, 2^143255645661 is an apocalyptic number.

It is an amenable number.

143255645661 is a deficient number, since it is larger than the sum of its proper divisors (47757612163).

143255645661 is a wasteful number, since it uses less digits than its factorization.

143255645661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432571.

The product of its digits is 2592000, while the sum is 48.

The spelling of 143255645661 in words is "one hundred forty-three billion, two hundred fifty-five million, six hundred forty-five thousand, six hundred sixty-one".