27615166706651 has 2 divisors, whose sum is σ = 27615166706652. Its totient is φ = 27615166706650.

The previous prime is 27615166706623. The next prime is 27615166706689. The reversal of 27615166706651 is 15660766151672.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27615166706651 is a prime.

It is a super-2 number, since 2×27615166706651² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27615166706551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13807583353325 + 13807583353326.

It is an arithmetic number, because the mean of its divisors is an integer number (13807583353326).

Almost surely, 2^{27615166706651} is an apocalyptic number.

27615166706651 is a deficient number, since it is larger than the sum of its proper divisors (1).

27615166706651 is an equidigital number, since it uses as much as digits as its factorization.

27615166706651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19051200, while the sum is 59.

The spelling of 27615166706651 in words is "twenty-seven trillion, six hundred fifteen billion, one hundred sixty-six million, seven hundred six thousand, six hundred fifty-one".