10505110505 has 16 divisors (see below), whose sum is σ = 13211700480. Its totient is φ = 8003569728.

The previous prime is 10505110501. The next prime is 10505110519. The reversal of 10505110505 is 50501150501.

It is a happy number.

10505110505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 10505110505 - 2² = 10505110501 is a prime.

It is a super-2 number, since 2×10505110505² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (10505110501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173117 + ... + 225786.

It is an arithmetic number, because the mean of its divisors is an integer number (825731280).

Almost surely, 2^10505110505 is an apocalyptic number.

It is an amenable number.

10505110505 is a deficient number, since it is larger than the sum of its proper divisors (2706589975).

10505110505 is a wasteful number, since it uses less digits than its factorization.

10505110505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399160.

The product of its (nonzero) digits is 625, while the sum is 23.

The spelling of 10505110505 in words is "ten billion, five hundred five million, one hundred ten thousand, five hundred five".