212411664 has 60 divisors (see below), whose sum is σ = 595485696. Its totient is φ = 70681536.

The previous prime is 212411663. The next prime is 212411669. The reversal of 212411664 is 466114212.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (212411663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126897 + ... + 128559.

Almost surely, 2^212411664 is an apocalyptic number.

212411664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

212411664 is an abundant number, since it is smaller than the sum of its proper divisors (383074032).

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

212411664 is a wasteful number, since it uses less digits than its factorization.

212411664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564 (or 2555 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 212411664 is about 14574.3495223629. The cubic root of 212411664 is about 596.6588962434.

Adding to 212411664 its reverse (466114212), we get a palindrome (678525876).

The spelling of 212411664 in words is "two hundred twelve million, four hundred eleven thousand, six hundred sixty-four".