983111936518661 has 8 divisors (see below), whose sum is σ = 986098125564000. Its totient is φ = 980125844235120.

The previous prime is 983111936518627. The next prime is 983111936518667. The reversal of 983111936518661 is 166815639111389.

It is a happy number.

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 983111936518661 - 2³⁸ = 982837058611717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 983111936518591 and 983111936518600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (983111936518667) 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, 3813311 + ... + 44505788.

It is an arithmetic number, because the mean of its divisors is an integer number (123262265695500).

Almost surely, 2^{983111936518661} is an apocalyptic number.

It is an amenable number.

983111936518661 is a deficient number, since it is larger than the sum of its proper divisors (2986189045339).

983111936518661 is a wasteful number, since it uses less digits than its factorization.

983111936518661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48380899.

The product of its digits is 50388480, while the sum is 68.

The spelling of 983111936518661 in words is "nine hundred eighty-three trillion, one hundred eleven billion, nine hundred thirty-six million, five hundred eighteen thousand, six hundred sixty-one".