105105606015611 has 4 divisors (see below), whose sum is σ = 106146255580224. Its totient is φ = 104064956451000.

The previous prime is 105105606015601. The next prime is 105105606015659. The reversal of 105105606015611 is 116510606501501.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105105606015611 is a prime.

It is a super-2 number, since 2×105105606015611² (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 (105105606015601) 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, 520324782155 + ... + 520324782356.

It is an arithmetic number, because the mean of its divisors is an integer number (26536563895056).

Almost surely, 2^{105105606015611} is an apocalyptic number.

105105606015611 is a deficient number, since it is larger than the sum of its proper divisors (1040649564613).

105105606015611 is a wasteful number, since it uses less digits than its factorization.

105105606015611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040649564612.

The product of its (nonzero) digits is 27000, while the sum is 38.

The spelling of 105105606015611 in words is "one hundred five trillion, one hundred five billion, six hundred six million, fifteen thousand, six hundred eleven".