56115111011 has 8 divisors (see below), whose sum is σ = 59453002080. Its totient is φ = 52781331328.

The previous prime is 56115110993. The next prime is 56115111047. The reversal of 56115111011 is 11011151165.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56115111011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56115131011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 999716 + ... + 1054353.

It is an arithmetic number, because the mean of its divisors is an integer number (7431625260).

Almost surely, 2^56115111011 is an apocalyptic number.

56115111011 is a deficient number, since it is larger than the sum of its proper divisors (3337891069).

56115111011 is a wasteful number, since it uses less digits than its factorization.

56115111011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2055693.

The product of its (nonzero) digits is 150, while the sum is 23.

Adding to 56115111011 its reverse (11011151165), we get a palindrome (67126262176).

The spelling of 56115111011 in words is "fifty-six billion, one hundred fifteen million, one hundred eleven thousand, eleven".