213000428466 has 32 divisors (see below), whose sum is σ = 540953470080. Its totient is φ = 60857265168.

The previous prime is 213000428429. The next prime is 213000428471. The reversal of 213000428466 is 664824000312.

It is a super-2 number, since 2×213000428466² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 213000428466.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281746221 + ... + 281746976.

It is an arithmetic number, because the mean of its divisors is an integer number (16904795940).

Almost surely, 2^213000428466 is an apocalyptic number.

213000428466 is an abundant number, since it is smaller than the sum of its proper divisors (327953041614).

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

213000428466 is a wasteful number, since it uses less digits than its factorization.

213000428466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563493215 (or 563493209 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

Adding to 213000428466 its reverse (664824000312), we get a palindrome (877824428778).

The spelling of 213000428466 in words is "two hundred thirteen billion, four hundred twenty-eight thousand, four hundred sixty-six".