866645342130 has 32 divisors (see below), whose sum is σ = 2080939896000. Its totient is φ = 230995305152.

The previous prime is 866645342119. The next prime is 866645342183. The reversal of 866645342130 is 31243546668.

866645342130 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 866645342130.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6818445 + ... + 6944384.

It is an arithmetic number, because the mean of its divisors is an integer number (65029371750).

Almost surely, 2^866645342130 is an apocalyptic number.

866645342130 is an abundant number, since it is smaller than the sum of its proper divisors (1214294553870).

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

866645342130 is a wasteful number, since it uses less digits than its factorization.

866645342130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13764938.

The product of its (nonzero) digits is 2488320, while the sum is 48.

Adding to 866645342130 its reverse (31243546668), we get a palindrome (897888888798).

The spelling of 866645342130 in words is "eight hundred sixty-six billion, six hundred forty-five million, three hundred forty-two thousand, one hundred thirty".