10500100505605 has 4 divisors (see below), whose sum is σ = 12600120606732. Its totient is φ = 8400080404480.

The previous prime is 10500100505567. The next prime is 10500100505677. The reversal of 10500100505605 is 50650500100501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6617411539489 + 3882688966116 = 2572433^2 + 1970454^2 .

It is a de Polignac number, because none of the positive numbers 2^k-10500100505605 is a prime.

It is a super-2 number, since 2×10500100505605² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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, 1050010050556 + ... + 1050010050565.

It is an arithmetic number, because the mean of its divisors is an integer number (3150030151683).

Almost surely, 2^{10500100505605} is an apocalyptic number.

It is an amenable number.

10500100505605 is a deficient number, since it is larger than the sum of its proper divisors (2100020101127).

10500100505605 is an equidigital number, since it uses as much as digits as its factorization.

10500100505605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100020101126.

The product of its (nonzero) digits is 3750, while the sum is 28.

The spelling of 10500100505605 in words is "ten trillion, five hundred billion, one hundred million, five hundred five thousand, six hundred five".