5105606105091 has 4 divisors (see below), whose sum is σ = 6807474806792. Its totient is φ = 3403737403392.

The previous prime is 5105606105081. The next prime is 5105606105129. The reversal of 5105606105091 is 1905016065015.

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

It is not a de Polignac number, because 5105606105091 - 2⁶ = 5105606105027 is a prime.

It is a super-2 number, since 2×5105606105091² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5105606105021) 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, 850934350846 + ... + 850934350851.

It is an arithmetic number, because the mean of its divisors is an integer number (1701868701698).

Almost surely, 2^{5105606105091} is an apocalyptic number.

5105606105091 is a deficient number, since it is larger than the sum of its proper divisors (1701868701701).

5105606105091 is a wasteful number, since it uses less digits than its factorization.

5105606105091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701868701700.

The product of its (nonzero) digits is 40500, while the sum is 39.

The spelling of 5105606105091 in words is "five trillion, one hundred five billion, six hundred six million, one hundred five thousand, ninety-one".