216112770 has 24 divisors (see below), whose sum is σ = 561893436. Its totient is φ = 57630048.

The previous prime is 216112769. The next prime is 216112781. The reversal of 216112770 is 77211612.

216112770 is a `hidden beast` number, since 21 + 611 + 27 + 7 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 176384961 + 39727809 = 13281^2 + 6303^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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 11 ways as a sum of consecutive naturals, for example, 1200537 + ... + 1200716.

Almost surely, 2^216112770 is an apocalyptic number.

216112770 is an abundant number, since it is smaller than the sum of its proper divisors (345780666).

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

216112770 is a wasteful number, since it uses less digits than its factorization.

216112770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2401266 (or 2401263 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 27.

The square root of 216112770 is about 14700.7744693945. The cubic root of 216112770 is about 600.1043985005.

The spelling of 216112770 in words is "two hundred sixteen million, one hundred twelve thousand, seven hundred seventy".