921164624832672 has 120 divisors (see below), whose sum is σ = 2955403171429632. Its totient is φ = 279140795395200.

The previous prime is 921164624832659. The next prime is 921164624832677. The reversal of 921164624832672 is 276238426461129.

921164624832672 is a `hidden beast` number, since 9 + 2 + 1 + 1 + 6 + 4 + 62 + 483 + 26 + 72 = 666.

It is not an unprimeable number, because it can be changed into a prime (921164624832677) 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 19 ways as a sum of consecutive naturals, for example, 16153952704 + ... + 16154009727.

Almost surely, 2^{921164624832672} is an apocalyptic number.

It is an amenable number.

921164624832672 is an abundant number, since it is smaller than the sum of its proper divisors (2034238546596960).

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

921164624832672 is a wasteful number, since it uses less digits than its factorization.

921164624832672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32307962464 (or 32307962447 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 63.

The spelling of 921164624832672 in words is "nine hundred twenty-one trillion, one hundred sixty-four billion, six hundred twenty-four million, eight hundred thirty-two thousand, six hundred seventy-two".