38697295666 has 8 divisors (see below), whose sum is σ = 58094602524. Its totient is φ = 19332428160.

The previous prime is 38697295657. The next prime is 38697295667. The reversal of 38697295666 is 66659279683.

It can be written as a sum of positive squares in 2 ways, for example, as 34402459441 + 4294836225 = 185479^2 + 65535^2 .

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

It is not an unprimeable number, because it can be changed into a prime (38697295667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8106855 + ... + 8111626.

Almost surely, 2^38697295666 is an apocalyptic number.

38697295666 is a deficient number, since it is larger than the sum of its proper divisors (19397306858).

38697295666 is a wasteful number, since it uses less digits than its factorization.

38697295666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16219676.

The product of its digits is 176359680, while the sum is 67.

The spelling of 38697295666 in words is "thirty-eight billion, six hundred ninety-seven million, two hundred ninety-five thousand, six hundred sixty-six".