105656648833 has 4 divisors (see below), whose sum is σ = 105684217668. Its totient is φ = 105629080000.

The previous prime is 105656648819. The next prime is 105656648849. The reversal of 105656648833 is 338846656501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 338846656501 = 9721 ⋅34857181.

It can be written as a sum of positive squares in 2 ways, for example, as 38941891569 + 66714757264 = 197337^2 + 258292^2 .

It is a cyclic number.

It is not a de Polignac number, because 105656648833 - 2¹⁷ = 105656517761 is a prime.

It is a super-2 number, since 2×105656648833² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105656648333) 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, 13778668 + ... + 13786333.

It is an arithmetic number, because the mean of its divisors is an integer number (26421054417).

Almost surely, 2^105656648833 is an apocalyptic number.

It is an amenable number.

105656648833 is a deficient number, since it is larger than the sum of its proper divisors (27568835).

105656648833 is an equidigital number, since it uses as much as digits as its factorization.

105656648833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27568834.

The product of its (nonzero) digits is 12441600, while the sum is 55.

The spelling of 105656648833 in words is "one hundred five billion, six hundred fifty-six million, six hundred forty-eight thousand, eight hundred thirty-three".