71672818055 has 8 divisors (see below), whose sum is σ = 86212652400. Its totient is φ = 57201407296.

The previous prime is 71672818043. The next prime is 71672818097. The reversal of 71672818055 is 55081827617.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71672818055 - 2¹² = 71672813959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71672817994 and 71672818012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17103590 + ... + 17107779.

It is an arithmetic number, because the mean of its divisors is an integer number (10776581550).

Almost surely, 2^71672818055 is an apocalyptic number.

71672818055 is a deficient number, since it is larger than the sum of its proper divisors (14539834345).

71672818055 is a wasteful number, since it uses less digits than its factorization.

71672818055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34211793.

The product of its (nonzero) digits is 940800, while the sum is 50.

The spelling of 71672818055 in words is "seventy-one billion, six hundred seventy-two million, eight hundred eighteen thousand, fifty-five".