613391183661 has 8 divisors (see below), whose sum is σ = 865964024064. Its totient is φ = 384872899520.

The previous prime is 613391183623. The next prime is 613391183681. The reversal of 613391183661 is 166381193316.

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 613391183661 - 2⁹ = 613391183149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 613391183661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613391183681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6013639005 + ... + 6013639106.

It is an arithmetic number, because the mean of its divisors is an integer number (108245503008).

Almost surely, 2^613391183661 is an apocalyptic number.

It is an amenable number.

613391183661 is a deficient number, since it is larger than the sum of its proper divisors (252572840403).

613391183661 is a wasteful number, since it uses less digits than its factorization.

613391183661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12027278131.

The product of its digits is 419904, while the sum is 48.

The spelling of 613391183661 in words is "six hundred thirteen billion, three hundred ninety-one million, one hundred eighty-three thousand, six hundred sixty-one".