866330877041 has 4 divisors (see below), whose sum is σ = 990092430912. Its totient is φ = 742569323172.

The previous prime is 866330877001. The next prime is 866330877043. The reversal of 866330877041 is 140778033668.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 866330877041 - 2²² = 866326682737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (866330877043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61880776925 + ... + 61880776938.

It is an arithmetic number, because the mean of its divisors is an integer number (247523107728).

Almost surely, 2^866330877041 is an apocalyptic number.

It is an amenable number.

866330877041 is a deficient number, since it is larger than the sum of its proper divisors (123761553871).

866330877041 is a wasteful number, since it uses less digits than its factorization.

866330877041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123761553870.

The product of its (nonzero) digits is 4064256, while the sum is 53.

The spelling of 866330877041 in words is "eight hundred sixty-six billion, three hundred thirty million, eight hundred seventy-seven thousand, forty-one".