56671613071 has 4 divisors (see below), whose sum is σ = 59135596272. Its totient is φ = 54207629872.

The previous prime is 56671613039. The next prime is 56671613087. The reversal of 56671613071 is 17031617665.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56671613071 - 2⁵ = 56671613039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56671610071) 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 3 ways as a sum of consecutive naturals, for example, 1231991566 + ... + 1231991611.

It is an arithmetic number, because the mean of its divisors is an integer number (14783899068).

Almost surely, 2^56671613071 is an apocalyptic number.

56671613071 is a deficient number, since it is larger than the sum of its proper divisors (2463983201).

56671613071 is a wasteful number, since it uses less digits than its factorization.

56671613071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2463983200.

The product of its (nonzero) digits is 158760, while the sum is 43.

The spelling of 56671613071 in words is "fifty-six billion, six hundred seventy-one million, six hundred thirteen thousand, seventy-one".