105668820850 has 12 divisors (see below), whose sum is σ = 196544006874. Its totient is φ = 42267528320.

The previous prime is 105668820823. The next prime is 105668820911. The reversal of 105668820850 is 58028866501.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 98236484329 + 7432336521 = 313427^2 + 86211^2 .

It is a super-2 number, since 2×105668820850² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105668820794 and 105668820803.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1056688159 + ... + 1056688258.

Almost surely, 2^105668820850 is an apocalyptic number.

105668820850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105668820850 is a deficient number, since it is larger than the sum of its proper divisors (90875186024).

105668820850 is a wasteful number, since it uses less digits than its factorization.

105668820850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2113376429 (or 2113376424 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 49.

The spelling of 105668820850 in words is "one hundred five billion, six hundred sixty-eight million, eight hundred twenty thousand, eight hundred fifty".