213166632 has 32 divisors (see below), whose sum is σ = 609048000. Its totient is φ = 60904704.

The previous prime is 213166631. The next prime is 213166651. The reversal of 213166632 is 236661312.

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

It is a self number, because there is not a number n which added to its sum of digits gives 213166632.

It is not an unprimeable number, because it can be changed into a prime (213166631) 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, 634257 + ... + 634592.

It is an arithmetic number, because the mean of its divisors is an integer number (19032750).

Almost surely, 2^213166632 is an apocalyptic number.

It is an amenable number.

213166632 is an abundant number, since it is smaller than the sum of its proper divisors (395881368).

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

213166632 is a wasteful number, since it uses less digits than its factorization.

213166632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268865 (or 1268861 counting only the distinct ones).

The product of its digits is 7776, while the sum is 30.

The square root of 213166632 is about 14600.2271215211. The cubic root of 213166632 is about 597.3649556207.

The spelling of 213166632 in words is "two hundred thirteen million, one hundred sixty-six thousand, six hundred thirty-two".