38223201665 has 8 divisors (see below), whose sum is σ = 50037645888. Its totient is φ = 27798692080.

The previous prime is 38223201647. The next prime is 38223201671. The reversal of 38223201665 is 56610232283.

It is a happy number.

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

It is not a de Polignac number, because 38223201665 - 2¹⁰ = 38223200641 is a prime.

It is a super-2 number, since 2×38223201665² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347483597 + ... + 347483706.

It is an arithmetic number, because the mean of its divisors is an integer number (6254705736).

Almost surely, 2^38223201665 is an apocalyptic number.

It is an amenable number.

38223201665 is a deficient number, since it is larger than the sum of its proper divisors (11814444223).

38223201665 is a wasteful number, since it uses less digits than its factorization.

38223201665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694967319.

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 38223201665 in words is "thirty-eight billion, two hundred twenty-three million, two hundred one thousand, six hundred sixty-five".