806997165461 has 2 divisors, whose sum is σ = 806997165462. Its totient is φ = 806997165460.

The previous prime is 806997165433. The next prime is 806997165467. The reversal of 806997165461 is 164561799608.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 786625312561 + 20371852900 = 886919^2 + 142730^2 .

It is a cyclic number.

It is not a de Polignac number, because 806997165461 - 2¹⁰ = 806997164437 is a prime.

It is a super-2 number, since 2×806997165461² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 806997165394 and 806997165403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (806997165467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403498582730 + 403498582731.

It is an arithmetic number, because the mean of its divisors is an integer number (403498582731).

Almost surely, 2^806997165461 is an apocalyptic number.

It is an amenable number.

806997165461 is a deficient number, since it is larger than the sum of its proper divisors (1).

806997165461 is an equidigital number, since it uses as much as digits as its factorization.

806997165461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19595520, while the sum is 62.

The spelling of 806997165461 in words is "eight hundred six billion, nine hundred ninety-seven million, one hundred sixty-five thousand, four hundred sixty-one".