66160014634261 has 2 divisors, whose sum is σ = 66160014634262. Its totient is φ = 66160014634260.

The previous prime is 66160014634183. The next prime is 66160014634319. The reversal of 66160014634261 is 16243641006166.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38266670232036 + 27893344402225 = 6186006^2 + 5281415^2 .

It is a cyclic number.

It is not a de Polignac number, because 66160014634261 - 2²³ = 66160006245653 is a prime.

It is a super-2 number, since 2×66160014634261² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66160014634561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33080007317130 + 33080007317131.

It is an arithmetic number, because the mean of its divisors is an integer number (33080007317131).

Almost surely, 2^{66160014634261} is an apocalyptic number.

It is an amenable number.

66160014634261 is a deficient number, since it is larger than the sum of its proper divisors (1).

66160014634261 is an equidigital number, since it uses as much as digits as its factorization.

66160014634261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 746496, while the sum is 46.

The spelling of 66160014634261 in words is "sixty-six trillion, one hundred sixty billion, fourteen million, six hundred thirty-four thousand, two hundred sixty-one".