212988530466 has 12 divisors (see below), whose sum is σ = 461475149382. Its totient is φ = 70996176816.

The previous prime is 212988530449. The next prime is 212988530501. The reversal of 212988530466 is 664035889212.

212988530466 is a `hidden beast` number, since 2 + 1 + 29 + 88 + 530 + 4 + 6 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 147053075625 + 65935454841 = 383475^2 + 256779^2 .

It is a super-2 number, since 2×212988530466² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5916348051 + ... + 5916348086.

Almost surely, 2^212988530466 is an apocalyptic number.

212988530466 is an abundant number, since it is smaller than the sum of its proper divisors (248486618916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212988530466 is a wasteful number, since it uses less digits than its factorization.

212988530466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11832696145 (or 11832696142 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 212988530466 in words is "two hundred twelve billion, nine hundred eighty-eight million, five hundred thirty thousand, four hundred sixty-six".