105818798824664 has 128 divisors (see below), whose sum is σ = 215122973472000. Its totient is φ = 48635758692864.

The previous prime is 105818798824649. The next prime is 105818798824723. The reversal of 105818798824664 is 466428897818501.

It is a super-2 number, since 2×105818798824664² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1389626639 + ... + 1389702785.

It is an arithmetic number, because the mean of its divisors is an integer number (1680648230250).

Almost surely, 2^{105818798824664} is an apocalyptic number.

It is an amenable number.

105818798824664 is an abundant number, since it is smaller than the sum of its proper divisors (109304174647336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105818798824664 is a wasteful number, since it uses less digits than its factorization.

105818798824664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77617 (or 77613 counting only the distinct ones).

The product of its (nonzero) digits is 1486356480, while the sum is 77.

The spelling of 105818798824664 in words is "one hundred five trillion, eight hundred eighteen billion, seven hundred ninety-eight million, eight hundred twenty-four thousand, six hundred sixty-four".