866957395000 has 40 divisors (see below), whose sum is σ = 2031281188200. Its totient is φ = 346782956000.

The previous prime is 866957394983. The next prime is 866957395013. The reversal of 866957395000 is 593759668.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 86690740 + ... + 86700739.

It is an arithmetic number, because the mean of its divisors is an integer number (50782029705).

Almost surely, 2^866957395000 is an apocalyptic number.

It is an amenable number.

866957395000 is an abundant number, since it is smaller than the sum of its proper divisors (1164323793200).

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

866957395000 is a wasteful number, since it uses less digits than its factorization.

866957395000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173391505 (or 173391486 counting only the distinct ones).

The product of its (nonzero) digits is 12247200, while the sum is 58.

The spelling of 866957395000 in words is "eight hundred sixty-six billion, nine hundred fifty-seven million, three hundred ninety-five thousand".