143661420635 has 8 divisors (see below), whose sum is σ = 172401765360. Its totient is φ = 114923762784.

The previous prime is 143661420611. The next prime is 143661420701. The reversal of 143661420635 is 536024166341.

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

It is a cyclic number.

It is not a de Polignac number, because 143661420635 - 2⁶ = 143661420571 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 143661420592 and 143661420601.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552152 + ... + 769541.

It is an arithmetic number, because the mean of its divisors is an integer number (21550220670).

Almost surely, 2^143661420635 is an apocalyptic number.

143661420635 is a deficient number, since it is larger than the sum of its proper divisors (28740344725).

143661420635 is a wasteful number, since it uses less digits than its factorization.

143661420635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343437.

The product of its (nonzero) digits is 311040, while the sum is 41.

Adding to 143661420635 its reverse (536024166341), we get a palindrome (679685586976).

The spelling of 143661420635 in words is "one hundred forty-three billion, six hundred sixty-one million, four hundred twenty thousand, six hundred thirty-five".