212166536 has 32 divisors (see below), whose sum is σ = 416223360. Its totient is φ = 101198592.

The previous prime is 212166527. The next prime is 212166541. The reversal of 212166536 is 635661212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78341 + ... + 81003.

It is an arithmetic number, because the mean of its divisors is an integer number (13006980).

Almost surely, 2^212166536 is an apocalyptic number.

It is an amenable number.

212166536 is a deficient number, since it is larger than the sum of its proper divisors (204056824).

212166536 is a wasteful number, since it uses less digits than its factorization.

212166536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3125 (or 3121 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 212166536 is about 14565.9375256109. The cubic root of 212166536 is about 596.4292884826.

The spelling of 212166536 in words is "two hundred twelve million, one hundred sixty-six thousand, five hundred thirty-six".