84856146161 has 2 divisors, whose sum is σ = 84856146162. Its totient is φ = 84856146160.

The previous prime is 84856146131. The next prime is 84856146173. The reversal of 84856146161 is 16164165848.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61088065600 + 23768080561 = 247160^2 + 154169^2 .

It is a cyclic number.

It is not a de Polignac number, because 84856146161 - 2⁶ = 84856146097 is a prime.

It is not a weakly prime, because it can be changed into another prime (84856146101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42428073080 + 42428073081.

It is an arithmetic number, because the mean of its divisors is an integer number (42428073081).

Almost surely, 2^84856146161 is an apocalyptic number.

It is an amenable number.

84856146161 is a deficient number, since it is larger than the sum of its proper divisors (1).

84856146161 is an equidigital number, since it uses as much as digits as its factorization.

84856146161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1105920, while the sum is 50.

The spelling of 84856146161 in words is "eighty-four billion, eight hundred fifty-six million, one hundred forty-six thousand, one hundred sixty-one".