216700952356 has 24 divisors (see below), whose sum is σ = 433794896640. Its totient is φ = 92787624192.

The previous prime is 216700952317. The next prime is 216700952431. The reversal of 216700952356 is 653259007612.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3477421 + ... + 3539188.

It is an arithmetic number, because the mean of its divisors is an integer number (18074787360).

Almost surely, 2^216700952356 is an apocalyptic number.

It is an amenable number.

216700952356 is an abundant number, since it is smaller than the sum of its proper divisors (217093944284).

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

216700952356 is a wasteful number, since it uses less digits than its factorization.

216700952356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7017723 (or 7017721 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 46.

Adding to 216700952356 its reverse (653259007612), we get a palindrome (869959959968).

The spelling of 216700952356 in words is "two hundred sixteen billion, seven hundred million, nine hundred fifty-two thousand, three hundred fifty-six".