216736213552 has 10 divisors (see below), whose sum is σ = 419926413788. Its totient is φ = 108368106768.

The previous prime is 216736213543. The next prime is 216736213597. The reversal of 216736213552 is 255312637612.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 216736213499 and 216736213508.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6773006658 + ... + 6773006689.

Almost surely, 2^216736213552 is an apocalyptic number.

It is an amenable number.

216736213552 is a deficient number, since it is larger than the sum of its proper divisors (203190200236).

216736213552 is a wasteful number, since it uses less digits than its factorization.

216736213552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13546013355 (or 13546013349 counting only the distinct ones).

The product of its digits is 453600, while the sum is 43.

The spelling of 216736213552 in words is "two hundred sixteen billion, seven hundred thirty-six million, two hundred thirteen thousand, five hundred fifty-two".