160897655021 has 2 divisors, whose sum is σ = 160897655022. Its totient is φ = 160897655020.

The previous prime is 160897654969. The next prime is 160897655053. The reversal of 160897655021 is 120556798061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91512300100 + 69385354921 = 302510^2 + 263411^2 .

It is a cyclic number.

It is not a de Polignac number, because 160897655021 - 2¹⁴ = 160897638637 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (160897655071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80448827510 + 80448827511.

It is an arithmetic number, because the mean of its divisors is an integer number (80448827511).

Almost surely, 2^160897655021 is an apocalyptic number.

It is an amenable number.

160897655021 is a deficient number, since it is larger than the sum of its proper divisors (1).

160897655021 is an equidigital number, since it uses as much as digits as its factorization.

160897655021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907200, while the sum is 50.

The spelling of 160897655021 in words is "one hundred sixty billion, eight hundred ninety-seven million, six hundred fifty-five thousand, twenty-one".