105523536561 has 8 divisors (see below), whose sum is σ = 140784959520. Its totient is φ = 70305568992.

The previous prime is 105523536553. The next prime is 105523536571. The reversal of 105523536561 is 165635325501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 105523536561 - 2³ = 105523536553 is a prime.

It is a super-2 number, since 2×105523536561² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105523536571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10858180 + ... + 10867893.

It is an arithmetic number, because the mean of its divisors is an integer number (17598119940).

Almost surely, 2^105523536561 is an apocalyptic number.

It is an amenable number.

105523536561 is a deficient number, since it is larger than the sum of its proper divisors (35261422959).

105523536561 is a wasteful number, since it uses less digits than its factorization.

105523536561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21727695.

The product of its (nonzero) digits is 405000, while the sum is 42.

The spelling of 105523536561 in words is "one hundred five billion, five hundred twenty-three million, five hundred thirty-six thousand, five hundred sixty-one".