215061324066 has 48 divisors (see below), whose sum is σ = 480089293944. Its totient is φ = 69526708992.

The previous prime is 215061324053. The next prime is 215061324113. The reversal of 215061324066 is 660423160512.

215061324066 is a `hidden beast` number, since 2 + 15 + 0 + 613 + 24 + 0 + 6 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 207916848441 + 7144475625 = 455979^2 + 84525^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 215061324066.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 307381 + ... + 724296.

Almost surely, 2^215061324066 is an apocalyptic number.

215061324066 is an abundant number, since it is smaller than the sum of its proper divisors (265027969878).

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

215061324066 is a wasteful number, since it uses less digits than its factorization.

215061324066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032035 (or 1032032 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Adding to 215061324066 its reverse (660423160512), we get a palindrome (875484484578).

The spelling of 215061324066 in words is "two hundred fifteen billion, sixty-one million, three hundred twenty-four thousand, sixty-six".