56671722105 has 32 divisors (see below), whose sum is σ = 93454748544. Its totient is φ = 29304032256.

The previous prime is 56671722103. The next prime is 56671722187. The reversal of 56671722105 is 50122717665.

It is a happy number.

It is not a de Polignac number, because 56671722105 - 2¹ = 56671722103 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56671722103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23344 + ... + 337473.

It is an arithmetic number, because the mean of its divisors is an integer number (2920460892).

Almost surely, 2^56671722105 is an apocalyptic number.

It is an amenable number.

56671722105 is a deficient number, since it is larger than the sum of its proper divisors (36783026439).

56671722105 is a wasteful number, since it uses less digits than its factorization.

56671722105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361145.

The product of its (nonzero) digits is 176400, while the sum is 42.

The spelling of 56671722105 in words is "fifty-six billion, six hundred seventy-one million, seven hundred twenty-two thousand, one hundred five".