212453577161 has 12 divisors (see below), whose sum is σ = 260147238480. Its totient is φ = 172518693480.

The previous prime is 212453577073. The next prime is 212453577181. The reversal of 212453577161 is 161775354212.

212453577161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212453577161 - 2³⁴ = 195273707977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212453577181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114098735 + ... + 114100596.

It is an arithmetic number, because the mean of its divisors is an integer number (21678936540).

Almost surely, 2^212453577161 is an apocalyptic number.

It is an amenable number.

212453577161 is a deficient number, since it is larger than the sum of its proper divisors (47693661319).

212453577161 is a wasteful number, since it uses less digits than its factorization.

212453577161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228199364 (or 228199357 counting only the distinct ones).

The product of its digits is 352800, while the sum is 44.

The spelling of 212453577161 in words is "two hundred twelve billion, four hundred fifty-three million, five hundred seventy-seven thousand, one hundred sixty-one".