866130623887344 has 40 divisors (see below), whose sum is σ = 2292077382731472. Its totient is φ = 281668495572480.

The previous prime is 866130623887273. The next prime is 866130623887351. The reversal of 866130623887344 is 443788326031668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220053510199 + ... + 220053514134.

Almost surely, 2^{866130623887344} is an apocalyptic number.

It is an amenable number.

866130623887344 is an abundant number, since it is smaller than the sum of its proper divisors (1425946758844128).

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

866130623887344 is a wasteful number, since it uses less digits than its factorization.

866130623887344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440107024385 (or 440107024379 counting only the distinct ones).

The product of its (nonzero) digits is 668860416, while the sum is 69.

The spelling of 866130623887344 in words is "eight hundred sixty-six trillion, one hundred thirty billion, six hundred twenty-three million, eight hundred eighty-seven thousand, three hundred forty-four".