816882666510 has 32 divisors (see below), whose sum is σ = 1978504814880. Its totient is φ = 215836887168.

The previous prime is 816882666497. The next prime is 816882666511. The reversal of 816882666510 is 15666288618.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816882666511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124902337 + ... + 124908876.

It is an arithmetic number, because the mean of its divisors is an integer number (61828275465).

Almost surely, 2^816882666510 is an apocalyptic number.

816882666510 is an abundant number, since it is smaller than the sum of its proper divisors (1161622148370).

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

816882666510 is a wasteful number, since it uses less digits than its factorization.

816882666510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249811332.

The product of its (nonzero) digits is 6635520, while the sum is 57.

The spelling of 816882666510 in words is "eight hundred sixteen billion, eight hundred eighty-two million, six hundred sixty-six thousand, five hundred ten".