842160217572 has 36 divisors (see below), whose sum is σ = 2138882973136. Its totient is φ = 279389643120.

The previous prime is 842160217571. The next prime is 842160217643. The reversal of 842160217572 is 275712061248.

842160217572 is a `hidden beast` number, since 8 + 4 + 2 + 1 + 60 + 2 + 17 + 572 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (842160217571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55426858 + ... + 55442049.

Almost surely, 2^842160217572 is an apocalyptic number.

It is an amenable number.

842160217572 is an abundant number, since it is smaller than the sum of its proper divisors (1296722755564).

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

842160217572 is a wasteful number, since it uses less digits than its factorization.

842160217572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110869128 (or 110869123 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The spelling of 842160217572 in words is "eight hundred forty-two billion, one hundred sixty million, two hundred seventeen thousand, five hundred seventy-two".