216251202356 has 36 divisors (see below), whose sum is σ = 440519940000. Its totient is φ = 92617133616.

The previous prime is 216251202353. The next prime is 216251202379. The reversal of 216251202356 is 653202152612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216251202353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74216 + ... + 661823.

It is an arithmetic number, because the mean of its divisors is an integer number (12236665000).

Almost surely, 2^216251202356 is an apocalyptic number.

It is an amenable number.

216251202356 is an abundant number, since it is smaller than the sum of its proper divisors (224268737644).

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

216251202356 is a wasteful number, since it uses less digits than its factorization.

216251202356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737556 (or 737547 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 216251202356 its reverse (653202152612), we get a palindrome (869453354968).

The spelling of 216251202356 in words is "two hundred sixteen billion, two hundred fifty-one million, two hundred two thousand, three hundred fifty-six".