105771648636 has 48 divisors (see below), whose sum is σ = 286145529600. Its totient is φ = 33724292976.

The previous prime is 105771648617. The next prime is 105771648637. The reversal of 105771648636 is 636846177501.

105771648636 is a `hidden beast` number, since 1 + 0 + 577 + 1 + 6 + 4 + 8 + 63 + 6 = 666.

It is a super-2 number, since 2×105771648636² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105771648637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21288106 + ... + 21293073.

It is an arithmetic number, because the mean of its divisors is an integer number (5961365200).

Almost surely, 2^105771648636 is an apocalyptic number.

It is an amenable number.

105771648636 is an abundant number, since it is smaller than the sum of its proper divisors (180373880964).

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

105771648636 is a wasteful number, since it uses less digits than its factorization.

105771648636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42581215 (or 42581207 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 105771648636 in words is "one hundred five billion, seven hundred seventy-one million, six hundred forty-eight thousand, six hundred thirty-six".