166192276035481 has 2 divisors, whose sum is σ = 166192276035482. Its totient is φ = 166192276035480.

The previous prime is 166192276035449. The next prime is 166192276035493. The reversal of 166192276035481 is 184530672291661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154481507625481 + 11710768410000 = 12429059^2 + 3422100^2 .

It is a cyclic number.

It is not a de Polignac number, because 166192276035481 - 2⁵ = 166192276035449 is a prime.

It is a super-2 number, since 2×166192276035481² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (166192276035431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83096138017740 + 83096138017741.

It is an arithmetic number, because the mean of its divisors is an integer number (83096138017741).

It is a 1-persistent number, because it is pandigital, but 2⋅166192276035481 = 332384552070962 is not.

Almost surely, 2^{166192276035481} is an apocalyptic number.

It is an amenable number.

166192276035481 is a deficient number, since it is larger than the sum of its proper divisors (1).

166192276035481 is an equidigital number, since it uses as much as digits as its factorization.

166192276035481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26127360, while the sum is 61.

The spelling of 166192276035481 in words is "one hundred sixty-six trillion, one hundred ninety-two billion, two hundred seventy-six million, thirty-five thousand, four hundred eighty-one".