13661966890151 has 2 divisors, whose sum is σ = 13661966890152. Its totient is φ = 13661966890150.

The previous prime is 13661966890133. The next prime is 13661966890177. The reversal of 13661966890151 is 15109866916631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13661966890151 - 2¹⁰ = 13661966889127 is a prime.

It is a super-2 number, since 2×13661966890151² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13661966890651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6830983445075 + 6830983445076.

It is an arithmetic number, because the mean of its divisors is an integer number (6830983445076).

Almost surely, 2^{13661966890151} is an apocalyptic number.

13661966890151 is a deficient number, since it is larger than the sum of its proper divisors (1).

13661966890151 is an equidigital number, since it uses as much as digits as its factorization.

13661966890151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12597120, while the sum is 62.

The spelling of 13661966890151 in words is "thirteen trillion, six hundred sixty-one billion, nine hundred sixty-six million, eight hundred ninety thousand, one hundred fifty-one".