216192546 has 12 divisors (see below), whose sum is σ = 468417222. Its totient is φ = 72064176.

The previous prime is 216192541. The next prime is 216192547. The reversal of 216192546 is 645291612.

216192546 is a `hidden beast` number, since 21 + 6 + 1 + 92 + 546 = 666.

It can be written as a sum of positive squares in only one way, i.e., 199911321 + 16281225 = 14139^2 + 4035^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 216192546.

It is not an unprimeable number, because it can be changed into a prime (216192541) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 6005331 + ... + 6005366.

Almost surely, 2^216192546 is an apocalyptic number.

216192546 is an abundant number, since it is smaller than the sum of its proper divisors (252224676).

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

216192546 is a wasteful number, since it uses less digits than its factorization.

216192546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12010705 (or 12010702 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 216192546 is about 14703.4875454771. The cubic root of 216192546 is about 600.1782303846.

The spelling of 216192546 in words is "two hundred sixteen million, one hundred ninety-two thousand, five hundred forty-six".