216525526364 has 24 divisors (see below), whose sum is σ = 434942118240. Its totient is φ = 92391425856.

The previous prime is 216525526363. The next prime is 216525526379. The reversal of 216525526364 is 463625525612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216525526363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16877987 + ... + 16890810.

It is an arithmetic number, because the mean of its divisors is an integer number (18122588260).

Almost surely, 2^216525526364 is an apocalyptic number.

It is an amenable number.

216525526364 is an abundant number, since it is smaller than the sum of its proper divisors (218416591876).

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

216525526364 is a wasteful number, since it uses less digits than its factorization.

216525526364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33769037 (or 33769035 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 47.

The spelling of 216525526364 in words is "two hundred sixteen billion, five hundred twenty-five million, five hundred twenty-six thousand, three hundred sixty-four".