866764402430610 has 128 divisors (see below), whose sum is σ = 2141565595545600. Its totient is φ = 224431170163200.

The previous prime is 866764402430557. The next prime is 866764402430699. The reversal of 866764402430610 is 16034204467668.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 90891561 + ... + 99974019.

It is an arithmetic number, because the mean of its divisors is an integer number (16730981215200).

Almost surely, 2^{866764402430610} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 866764402430610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1070782797772800).

866764402430610 is an abundant number, since it is smaller than the sum of its proper divisors (1274801193114990).

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

866764402430610 is a wasteful number, since it uses less digits than its factorization.

866764402430610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9083216.

The product of its (nonzero) digits is 27869184, while the sum is 57.

The spelling of 866764402430610 in words is "eight hundred sixty-six trillion, seven hundred sixty-four billion, four hundred two million, four hundred thirty thousand, six hundred ten".