216331534232404 has 24 divisors (see below), whose sum is σ = 400850108783208. Its totient is φ = 101802947635200.

The previous prime is 216331534232351. The next prime is 216331534232413. The reversal of 216331534232404 is 404232435133612.

It can be written as a sum of positive squares in 4 ways, for example, as 59377041922500 + 156954492309904 = 7705650^2 + 12528148^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73960554 + ... + 76829854.

It is an arithmetic number, because the mean of its divisors is an integer number (16702087865967).

Almost surely, 2^{216331534232404} is an apocalyptic number.

It is an amenable number.

216331534232404 is a deficient number, since it is larger than the sum of its proper divisors (184518574550804).

216331534232404 is a wasteful number, since it uses less digits than its factorization.

216331534232404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3978075 (or 3978073 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 43.

The spelling of 216331534232404 in words is "two hundred sixteen trillion, three hundred thirty-one billion, five hundred thirty-four million, two hundred thirty-two thousand, four hundred four".