216506196930 has 32 divisors (see below), whose sum is σ = 542206825344. Its totient is φ = 55224768896.

The previous prime is 216506196919. The next prime is 216506196947. The reversal of 216506196930 is 39691605612.

It is a happy number.

216506196930 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 216506196930.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156887859 + ... + 156889238.

It is an arithmetic number, because the mean of its divisors is an integer number (16943963292).

Almost surely, 2^216506196930 is an apocalyptic number.

216506196930 is an abundant number, since it is smaller than the sum of its proper divisors (325700628414).

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

216506196930 is a wasteful number, since it uses less digits than its factorization.

216506196930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313777130.

The product of its (nonzero) digits is 524880, while the sum is 48.

The spelling of 216506196930 in words is "two hundred sixteen billion, five hundred six million, one hundred ninety-six thousand, nine hundred thirty".