613669181966316 has 72 divisors (see below), whose sum is σ = 1790374775183904. Its totient is φ = 173598071270400.

The previous prime is 613669181966297. The next prime is 613669181966341.

It is a happy number.

613669181966316 is a `hidden beast` number, since 6 + 1 + 3 + 66 + 91 + 81 + 96 + 6 + 316 = 666.

613669181966316 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×613669181966316² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12055396165 + ... + 12055447068.

Almost surely, 2^{613669181966316} is an apocalyptic number.

It is an amenable number.

613669181966316 is an abundant number, since it is smaller than the sum of its proper divisors (1176705593217588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

613669181966316 is a wasteful number, since it uses less digits than its factorization.

613669181966316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24110843351 (or 24110843346 counting only the distinct ones).

The product of its digits is 272097792, while the sum is 72.

The spelling of 613669181966316 in words is "six hundred thirteen trillion, six hundred sixty-nine billion, one hundred eighty-one million, nine hundred sixty-six thousand, three hundred sixteen".