56720744215107 has 16 divisors (see below), whose sum is σ = 86455414152192. Its totient is φ = 32402927367360.

The previous prime is 56720744215097. The next prime is 56720744215111. The reversal of 56720744215107 is 70151244702765.

It is not a de Polignac number, because 56720744215107 - 2¹⁶ = 56720744149571 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56720744215107.

It is not an unprimeable number, because it can be changed into a prime (56720744216107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 371858178 + ... + 372010679.

It is an arithmetic number, because the mean of its divisors is an integer number (5403463384512).

Almost surely, 2^{56720744215107} is an apocalyptic number.

56720744215107 is a deficient number, since it is larger than the sum of its proper divisors (29734669937085).

56720744215107 is a wasteful number, since it uses less digits than its factorization.

56720744215107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743872498.

The product of its (nonzero) digits is 3292800, while the sum is 51.

The spelling of 56720744215107 in words is "fifty-six trillion, seven hundred twenty billion, seven hundred forty-four million, two hundred fifteen thousand, one hundred seven".