8000956895161 has 2 divisors, whose sum is σ = 8000956895162. Its totient is φ = 8000956895160.

The previous prime is 8000956895153. The next prime is 8000956895263. The reversal of 8000956895161 is 1615986590008.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5601122155561 + 2399834739600 = 2366669^2 + 1549140^2 .

It is a cyclic number.

It is not a de Polignac number, because 8000956895161 - 2³ = 8000956895153 is a prime.

It is a super-2 number, since 2×8000956895161² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8000956895096 and 8000956895105.

It is not a weakly prime, because it can be changed into another prime (8000956895111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4000478447580 + 4000478447581.

It is an arithmetic number, because the mean of its divisors is an integer number (4000478447581).

Almost surely, 2^{8000956895161} is an apocalyptic number.

It is an amenable number.

8000956895161 is a deficient number, since it is larger than the sum of its proper divisors (1).

8000956895161 is an equidigital number, since it uses as much as digits as its factorization.

8000956895161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4665600, while the sum is 58.

The spelling of 8000956895161 in words is "eight trillion, nine hundred fifty-six million, eight hundred ninety-five thousand, one hundred sixty-one".