8651091168997 has 2 divisors, whose sum is σ = 8651091168998. Its totient is φ = 8651091168996.

The previous prime is 8651091168983. The next prime is 8651091169031. The reversal of 8651091168997 is 7998611901568.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6637867876836 + 2013223292161 = 2576406^2 + 1418881^2 .

It is a cyclic number.

It is not a de Polignac number, because 8651091168997 - 2⁷ = 8651091168869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8651091168947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4325545584498 + 4325545584499.

It is an arithmetic number, because the mean of its divisors is an integer number (4325545584499).

Almost surely, 2^{8651091168997} is an apocalyptic number.

It is an amenable number.

8651091168997 is a deficient number, since it is larger than the sum of its proper divisors (1).

8651091168997 is an equidigital number, since it uses as much as digits as its factorization.

8651091168997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58786560, while the sum is 70.

The spelling of 8651091168997 in words is "eight trillion, six hundred fifty-one billion, ninety-one million, one hundred sixty-eight thousand, nine hundred ninety-seven".