672056006571 has 24 divisors (see below), whose sum is σ = 973707134400. Its totient is φ = 446673024000.

The previous prime is 672056006443. The next prime is 672056006617. The reversal of 672056006571 is 175600650276.

672056006571 is a `hidden beast` number, since 6 + 7 + 20 + 56 + 0 + 0 + 6 + 571 = 666.

It is not a de Polignac number, because 672056006571 - 2⁷ = 672056006443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (672056006771) 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 23 ways as a sum of consecutive naturals, for example, 4906921 + ... + 5042021.

It is an arithmetic number, because the mean of its divisors is an integer number (40571130600).

Almost surely, 2^672056006571 is an apocalyptic number.

672056006571 is a deficient number, since it is larger than the sum of its proper divisors (301651127829).

672056006571 is a wasteful number, since it uses less digits than its factorization.

672056006571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136787 (or 136784 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The spelling of 672056006571 in words is "six hundred seventy-two billion, fifty-six million, six thousand, five hundred seventy-one".