105650066521 has 8 divisors (see below), whose sum is σ = 106381668384. Its totient is φ = 104920949760.

The previous prime is 105650066507. The next prime is 105650066573. The reversal of 105650066521 is 125660056501.

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

It is a cyclic number.

It is not a de Polignac number, because 105650066521 - 2¹¹ = 105650064473 is a prime.

It is a super-2 number, since 2×105650066521² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105650066591) 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, 535915 + ... + 706048.

It is an arithmetic number, because the mean of its divisors is an integer number (13297708548).

Almost surely, 2^105650066521 is an apocalyptic number.

It is an amenable number.

105650066521 is a deficient number, since it is larger than the sum of its proper divisors (731601863).

105650066521 is a wasteful number, since it uses less digits than its factorization.

105650066521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242551.

The product of its (nonzero) digits is 54000, while the sum is 37.

The spelling of 105650066521 in words is "one hundred five billion, six hundred fifty million, sixty-six thousand, five hundred twenty-one".