966221804878 has 16 divisors (see below), whose sum is σ = 1581995320704. Its totient is φ = 438940314360.

The previous prime is 966221804861. The next prime is 966221804879. The reversal of 966221804878 is 878408122669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (966221804879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12531450 + ... + 12608317.

It is an arithmetic number, because the mean of its divisors is an integer number (98874707544).

Almost surely, 2^966221804878 is an apocalyptic number.

966221804878 is a deficient number, since it is larger than the sum of its proper divisors (615773515826).

966221804878 is a wasteful number, since it uses less digits than its factorization.

966221804878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25141527.

The product of its (nonzero) digits is 18579456, while the sum is 61.

The spelling of 966221804878 in words is "nine hundred sixty-six billion, two hundred twenty-one million, eight hundred four thousand, eight hundred seventy-eight".