212063145169 has 8 divisors (see below), whose sum is σ = 224608359240. Its totient is φ = 199525810176.

The previous prime is 212063145157. The next prime is 212063145187. The reversal of 212063145169 is 961541360212.

It can be written as a sum of positive squares in 4 ways, for example, as 85213199569 + 126849945600 = 291913^2 + 356160^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212063145169 - 2⁵ = 212063145137 is a prime.

It is a super-2 number, since 2×212063145169² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212063145109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1914304 + ... + 2022049.

It is an arithmetic number, because the mean of its divisors is an integer number (28076044905).

Almost surely, 2^212063145169 is an apocalyptic number.

It is an amenable number.

212063145169 is a deficient number, since it is larger than the sum of its proper divisors (12545214071).

212063145169 is a wasteful number, since it uses less digits than its factorization.

212063145169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3939539.

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 212063145169 in words is "two hundred twelve billion, sixty-three million, one hundred forty-five thousand, one hundred sixty-nine".