38111666503697 has 2 divisors, whose sum is σ = 38111666503698. Its totient is φ = 38111666503696.

The previous prime is 38111666503679. The next prime is 38111666503751. The reversal of 38111666503697 is 79630566611183.

Together with previous prime (38111666503679) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37835280779521 + 276385724176 = 6151039^2 + 525724^2 .

It is a cyclic number.

It is not a de Polignac number, because 38111666503697 - 2²⁰ = 38111665455121 is a prime.

It is a super-2 number, since 2×38111666503697² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38111666503597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19055833251848 + 19055833251849.

It is an arithmetic number, because the mean of its divisors is an integer number (19055833251849).

Almost surely, 2^{38111666503697} is an apocalyptic number.

It is an amenable number.

38111666503697 is a deficient number, since it is larger than the sum of its proper divisors (1).

38111666503697 is an equidigital number, since it uses as much as digits as its factorization.

38111666503697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29393280, while the sum is 62.

The spelling of 38111666503697 in words is "thirty-eight trillion, one hundred eleven billion, six hundred sixty-six million, five hundred three thousand, six hundred ninety-seven".