966858888644 has 24 divisors (see below), whose sum is σ = 1849988191968. Its totient is φ = 438489247040.

The previous prime is 966858888643. The next prime is 966858888647. The reversal of 966858888644 is 446888858669.

It is a happy number.

966858888644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×966858888644² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (966858888643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24781937 + ... + 24820920.

It is an arithmetic number, because the mean of its divisors is an integer number (77082841332).

Almost surely, 2^966858888644 is an apocalyptic number.

It is an amenable number.

966858888644 is a deficient number, since it is larger than the sum of its proper divisors (883129303324).

966858888644 is a wasteful number, since it uses less digits than its factorization.

966858888644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49603315 (or 49603313 counting only the distinct ones).

The product of its digits is 5096079360, while the sum is 80.

The spelling of 966858888644 in words is "nine hundred sixty-six billion, eight hundred fifty-eight million, eight hundred eighty-eight thousand, six hundred forty-four".