10557611111111 has 4 divisors (see below), whose sum is σ = 10593643913832. Its totient is φ = 10521578308392.

The previous prime is 10557611111077. The next prime is 10557611111119. The reversal of 10557611111111 is 11111111675501.

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 10557611111111 - 2³⁴ = 10540431241927 is a prime.

It is a super-2 number, since 2×10557611111111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

10557611111111 is a modest number, since divided by 1111111 gives 1055761 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10557611111119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18016400921 + ... + 18016401506.

It is an arithmetic number, because the mean of its divisors is an integer number (2648410978458).

Almost surely, 2^{10557611111111} is an apocalyptic number.

10557611111111 is a deficient number, since it is larger than the sum of its proper divisors (36032802721).

10557611111111 is an equidigital number, since it uses as much as digits as its factorization.

10557611111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36032802720.

The product of its (nonzero) digits is 1050, while the sum is 32.

Adding to 10557611111111 its reverse (11111111675501), we get a palindrome (21668722786612).

The spelling of 10557611111111 in words is "ten trillion, five hundred fifty-seven billion, six hundred eleven million, one hundred eleven thousand, one hundred eleven".