613669677661 has 8 divisors (see below), whose sum is σ = 649785360960. Its totient is φ = 577555935168.

The previous prime is 613669677641. The next prime is 613669677683. The reversal of 613669677661 is 166776966316.

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 613669677661 - 2³⁵ = 579309939293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 613669677593 and 613669677602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613669677601) 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, 192880 + ... + 1124518.

It is an arithmetic number, because the mean of its divisors is an integer number (81223170120).

Almost surely, 2^613669677661 is an apocalyptic number.

It is an amenable number.

613669677661 is a deficient number, since it is larger than the sum of its proper divisors (36115683299).

613669677661 is a wasteful number, since it uses less digits than its factorization.

613669677661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970403.

The product of its digits is 61725888, while the sum is 64.

The spelling of 613669677661 in words is "six hundred thirteen billion, six hundred sixty-nine million, six hundred seventy-seven thousand, six hundred sixty-one".