866648671032 has 16 divisors (see below), whose sum is σ = 2166621677640. Its totient is φ = 288882890336.

The previous prime is 866648670991. The next prime is 866648671037. The reversal of 866648671032 is 230176846668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866648671037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18055180623 + ... + 18055180670.

Almost surely, 2^866648671032 is an apocalyptic number.

It is an amenable number.

866648671032 is an abundant number, since it is smaller than the sum of its proper divisors (1299973006608).

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

866648671032 is a wasteful number, since it uses less digits than its factorization.

866648671032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36110361302 (or 36110361298 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 57.

The spelling of 866648671032 in words is "eight hundred sixty-six billion, six hundred forty-eight million, six hundred seventy-one thousand, thirty-two".