105656648819 has 2 divisors, whose sum is σ = 105656648820. Its totient is φ = 105656648818.

The previous prime is 105656648809. The next prime is 105656648849. The reversal of 105656648819 is 918846656501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105656648819 - 2²⁸ = 105388213363 is a prime.

It is a super-2 number, since 2×105656648819² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105656648809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52828324409 + 52828324410.

It is an arithmetic number, because the mean of its divisors is an integer number (52828324410).

Almost surely, 2^105656648819 is an apocalyptic number.

105656648819 is a deficient number, since it is larger than the sum of its proper divisors (1).

105656648819 is an equidigital number, since it uses as much as digits as its factorization.

105656648819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12441600, while the sum is 59.

The spelling of 105656648819 in words is "one hundred five billion, six hundred fifty-six million, six hundred forty-eight thousand, eight hundred nineteen".