105706656 has 144 divisors (see below), whose sum is σ = 333916128. Its totient is φ = 31449600.

The previous prime is 105706649. The next prime is 105706693. The reversal of 105706656 is 656607501.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×105706656² = 22347794245404672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 105706656.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 192975 + ... + 193521.

It is an arithmetic number, because the mean of its divisors is an integer number (2318862).

Almost surely, 2^105706656 is an apocalyptic number.

105706656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105706656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166958064).

105706656 is an abundant number, since it is smaller than the sum of its proper divisors (228209472).

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

105706656 is a wasteful number, since it uses less digits than its factorization.

105706656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635 (or 624 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 105706656 is about 10281.3742272130. The cubic root of 105706656 is about 472.8253776307.

The spelling of 105706656 in words is "one hundred five million, seven hundred six thousand, six hundred fifty-six".