51106051061105 has 4 divisors (see below), whose sum is σ = 61327261273332. Its totient is φ = 40884840848880.

The previous prime is 51106051061089. The next prime is 51106051061137. The reversal of 51106051061105 is 50116015060115.

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

It can be written as a sum of positive squares in 2 ways, for example, as 35133015690721 + 15973035370384 = 5927311^2 + 3996628^2 .

It is not a de Polignac number, because 51106051061105 - 2⁴ = 51106051061089 is a prime.

It is a super-2 number, since 2×51106051061105² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5110605106106 + ... + 5110605106115.

It is an arithmetic number, because the mean of its divisors is an integer number (15331815318333).

Almost surely, 2^{51106051061105} is an apocalyptic number.

It is an amenable number.

51106051061105 is a deficient number, since it is larger than the sum of its proper divisors (10221210212227).

51106051061105 is a wasteful number, since it uses less digits than its factorization.

51106051061105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10221210212226.

The product of its (nonzero) digits is 4500, while the sum is 32.

The spelling of 51106051061105 in words is "fifty-one trillion, one hundred six billion, fifty-one million, sixty-one thousand, one hundred five".