38105445663 has 6 divisors (see below), whose sum is σ = 55041199304. Its totient is φ = 25403630436.

The previous prime is 38105445647. The next prime is 38105445671. The reversal of 38105445663 is 36654450183.

38105445663 is a `hidden beast` number, since 3 + 81 + 0 + 5 + 4 + 4 + 566 + 3 = 666.

It is not a de Polignac number, because 38105445663 - 2⁴ = 38105445647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38105445163) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2116969195 + ... + 2116969212.

Almost surely, 2^38105445663 is an apocalyptic number.

38105445663 is a deficient number, since it is larger than the sum of its proper divisors (16935753641).

38105445663 is a wasteful number, since it uses less digits than its factorization.

38105445663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4233938413 (or 4233938410 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 38105445663 in words is "thirty-eight billion, one hundred five million, four hundred forty-five thousand, six hundred sixty-three".