105111666551091 has 8 divisors (see below), whose sum is σ = 140196092818320. Its totient is φ = 70050842325632.

The previous prime is 105111666551039. The next prime is 105111666551159. The reversal of 105111666551091 is 190155666111501.

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

It is a cyclic number.

It is not a de Polignac number, because 105111666551091 - 2¹⁰ = 105111666550067 is a prime.

It is a super-2 number, since 2×105111666551091² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105111666551091.

It is not an unprimeable number, because it can be changed into a prime (105111666551291) 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, 5900500050 + ... + 5900517863.

It is an arithmetic number, because the mean of its divisors is an integer number (17524511602290).

Almost surely, 2^{105111666551091} is an apocalyptic number.

105111666551091 is a deficient number, since it is larger than the sum of its proper divisors (35084426267229).

105111666551091 is a wasteful number, since it uses less digits than its factorization.

105111666551091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11801020885.

The product of its (nonzero) digits is 243000, while the sum is 48.

The spelling of 105111666551091 in words is "one hundred five trillion, one hundred eleven billion, six hundred sixty-six million, five hundred fifty-one thousand, ninety-one".