216366792510 has 96 divisors (see below), whose sum is σ = 572798782080. Its totient is φ = 52266962880.

The previous prime is 216366792503. The next prime is 216366792517. The reversal of 216366792510 is 15297663612.

It is an interprime number because it is at equal distance from previous prime (216366792503) and next prime (216366792517).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 216366792510.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216366792517) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 921981 + ... + 1132599.

It is an arithmetic number, because the mean of its divisors is an integer number (5966653980).

Almost surely, 2^216366792510 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216366792510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286399391040).

216366792510 is an abundant number, since it is smaller than the sum of its proper divisors (356431989570).

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

216366792510 is a wasteful number, since it uses less digits than its factorization.

216366792510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210934 (or 210923 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 48.

The spelling of 216366792510 in words is "two hundred sixteen billion, three hundred sixty-six million, seven hundred ninety-two thousand, five hundred ten".