383533686661 has 8 divisors (see below), whose sum is σ = 389273839040. Its totient is φ = 377793998208.

The previous prime is 383533686659. The next prime is 383533686691. The reversal of 383533686661 is 166686335383.

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 383533686661 - 2¹ = 383533686659 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 383533686596 and 383533686605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383533686611) 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, 1779925 + ... + 1983733.

It is an arithmetic number, because the mean of its divisors is an integer number (48659229880).

Almost surely, 2^383533686661 is an apocalyptic number.

It is an amenable number.

383533686661 is a deficient number, since it is larger than the sum of its proper divisors (5740152379).

383533686661 is a wasteful number, since it uses less digits than its factorization.

383533686661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231963.

The product of its digits is 33592320, while the sum is 58.

The spelling of 383533686661 in words is "three hundred eighty-three billion, five hundred thirty-three million, six hundred eighty-six thousand, six hundred sixty-one".