211664336010 has 64 divisors (see below), whose sum is σ = 521963332992. Its totient is φ = 54893120256.

The previous prime is 211664335999. The next prime is 211664336011. The reversal of 211664336010 is 10633466112.

It is a super-2 number, since 2×211664336010² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211664336011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2440449 + ... + 2525691.

It is an arithmetic number, because the mean of its divisors is an integer number (8155677078).

Almost surely, 2^211664336010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211664336010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260981666496).

211664336010 is an abundant number, since it is smaller than the sum of its proper divisors (310298996982).

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

211664336010 is a wasteful number, since it uses less digits than its factorization.

211664336010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87527.

The product of its (nonzero) digits is 15552, while the sum is 33.

The spelling of 211664336010 in words is "two hundred eleven billion, six hundred sixty-four million, three hundred thirty-six thousand, ten".