105605161544 has 16 divisors (see below), whose sum is σ = 198013434300. Its totient is φ = 52801579072.

The previous prime is 105605161517. The next prime is 105605161567. The reversal of 105605161544 is 445161506501.

It can be written as a sum of positive squares in 2 ways, for example, as 79857108100 + 25748053444 = 282590^2 + 160462^2 .

It is a super-2 number, since 2×105605161544² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105605161498 and 105605161507.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516002 + ... + 690990.

Almost surely, 2^105605161544 is an apocalyptic number.

It is an amenable number.

105605161544 is a deficient number, since it is larger than the sum of its proper divisors (92408272756).

105605161544 is a wasteful number, since it uses less digits than its factorization.

105605161544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250432 (or 250428 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 38.

The spelling of 105605161544 in words is "one hundred five billion, six hundred five million, one hundred sixty-one thousand, five hundred forty-four".