2686655677466 has 4 divisors (see below), whose sum is σ = 4029983516202. Its totient is φ = 1343327838732.

The previous prime is 2686655677457. The next prime is 2686655677493. The reversal of 2686655677466 is 6647765566862.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2446142920225 + 240512757241 = 1564015^2 + 490421^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2686655677393 and 2686655677402.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671663919365 + ... + 671663919368.

Almost surely, 2^{2686655677466} is an apocalyptic number.

2686655677466 is a deficient number, since it is larger than the sum of its proper divisors (1343327838736).

2686655677466 is a wasteful number, since it uses less digits than its factorization.

2686655677466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343327838735.

The product of its digits is 3657830400, while the sum is 74.

The spelling of 2686655677466 in words is "two trillion, six hundred eighty-six billion, six hundred fifty-five million, six hundred seventy-seven thousand, four hundred sixty-six".