38668517566 has 8 divisors (see below), whose sum is σ = 66288887280. Its totient is φ = 16572221808.

The previous prime is 38668517557. The next prime is 38668517597. The reversal of 38668517566 is 66571586683.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1381018471 + ... + 1381018498.

It is an arithmetic number, because the mean of its divisors is an integer number (8286110910).

Almost surely, 2^38668517566 is an apocalyptic number.

38668517566 is a deficient number, since it is larger than the sum of its proper divisors (27620369714).

38668517566 is a wasteful number, since it uses less digits than its factorization.

38668517566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2762036978.

The product of its digits is 43545600, while the sum is 61.

The spelling of 38668517566 in words is "thirty-eight billion, six hundred sixty-eight million, five hundred seventeen thousand, five hundred sixty-six".