866857033358548 has 12 divisors (see below), whose sum is σ = 1596841903555360. Its totient is φ = 410616489485592.

The previous prime is 866857033358497. The next prime is 866857033358597. The reversal of 866857033358548 is 845853330758668.

It is a super-2 number, since 2×866857033358548² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5703006798336 + ... + 5703006798487.

Almost surely, 2^{866857033358548} is an apocalyptic number.

It is an amenable number.

866857033358548 is a deficient number, since it is larger than the sum of its proper divisors (729984870196812).

866857033358548 is a wasteful number, since it uses less digits than its factorization.

866857033358548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11406013596846 (or 11406013596844 counting only the distinct ones).

The product of its (nonzero) digits is 13934592000, while the sum is 79.

The spelling of 866857033358548 in words is "eight hundred sixty-six trillion, eight hundred fifty-seven billion, thirty-three million, three hundred fifty-eight thousand, five hundred forty-eight".