38516661311 has 2 divisors, whose sum is σ = 38516661312. Its totient is φ = 38516661310.

The previous prime is 38516661251. The next prime is 38516661329. The reversal of 38516661311 is 11316661583.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (11316661583) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38516661311 - 2¹⁸ = 38516399167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38516661811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19258330655 + 19258330656.

It is an arithmetic number, because the mean of its divisors is an integer number (19258330656).

Almost surely, 2^38516661311 is an apocalyptic number.

38516661311 is a deficient number, since it is larger than the sum of its proper divisors (1).

38516661311 is an equidigital number, since it uses as much as digits as its factorization.

38516661311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 41.

The spelling of 38516661311 in words is "thirty-eight billion, five hundred sixteen million, six hundred sixty-one thousand, three hundred eleven".