216520010661202 has 16 divisors (see below), whose sum is σ = 336101266282752. Its totient is φ = 104503848474960.

The previous prime is 216520010661167. The next prime is 216520010661209. The reversal of 216520010661202 is 202166010025612.

It is not an unprimeable number, because it can be changed into a prime (216520010661209) 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, 4398285508 + ... + 4398334735.

It is an arithmetic number, because the mean of its divisors is an integer number (21006329142672).

Almost surely, 2^{216520010661202} is an apocalyptic number.

216520010661202 is a deficient number, since it is larger than the sum of its proper divisors (119581255621550).

216520010661202 is a wasteful number, since it uses less digits than its factorization.

216520010661202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8796620673.

The product of its (nonzero) digits is 17280, while the sum is 34.

Adding to 216520010661202 its reverse (202166010025612), we get a palindrome (418686020686814).

The spelling of 216520010661202 in words is "two hundred sixteen trillion, five hundred twenty billion, ten million, six hundred sixty-one thousand, two hundred two".