105611110009993 has 4 divisors (see below), whose sum is σ = 120698411440000. Its totient is φ = 90523808579988.

The previous prime is 105611110009969. The next prime is 105611110010033. The reversal of 105611110009993 is 399900011116501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-105611110009993 is a prime.

It is a super-2 number, since 2×105611110009993² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105611110009693) 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, 7543650714993 + ... + 7543650715006.

It is an arithmetic number, because the mean of its divisors is an integer number (30174602860000).

Almost surely, 2^{105611110009993} is an apocalyptic number.

It is an amenable number.

105611110009993 is a deficient number, since it is larger than the sum of its proper divisors (15087301430007).

105611110009993 is an equidigital number, since it uses as much as digits as its factorization.

105611110009993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15087301430006.

The product of its (nonzero) digits is 65610, while the sum is 46.

The spelling of 105611110009993 in words is "one hundred five trillion, six hundred eleven billion, one hundred ten million, nine thousand, nine hundred ninety-three".