38660355217 has 16 divisors (see below), whose sum is σ = 42588389952. Its totient is φ = 34801529920.

The previous prime is 38660355199. The next prime is 38660355233. The reversal of 38660355217 is 71255306683.

It is a cyclic number.

It is not a de Polignac number, because 38660355217 - 2¹¹ = 38660353169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38660355277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3163563 + ... + 3175759.

It is an arithmetic number, because the mean of its divisors is an integer number (2661774372).

Almost surely, 2^38660355217 is an apocalyptic number.

It is an amenable number.

38660355217 is a deficient number, since it is larger than the sum of its proper divisors (3928034735).

38660355217 is a wasteful number, since it uses less digits than its factorization.

38660355217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15008.

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 38660355217 in words is "thirty-eight billion, six hundred sixty million, three hundred fifty-five thousand, two hundred seventeen".