10500155609 has 2 divisors, whose sum is σ = 10500155610. Its totient is φ = 10500155608.

The previous prime is 10500155581. The next prime is 10500155641. The reversal of 10500155609 is 90655100501.

It is an a-pointer prime, because the next prime (10500155641) can be obtained adding 10500155609 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7332154384 + 3168001225 = 85628^2 + 56285^2 .

It is a cyclic number.

It is not a de Polignac number, because 10500155609 - 2²⁰ = 10499107033 is a prime.

It is a super-2 number, since 2×10500155609² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10500145609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5250077804 + 5250077805.

It is an arithmetic number, because the mean of its divisors is an integer number (5250077805).

Almost surely, 2^10500155609 is an apocalyptic number.

It is an amenable number.

10500155609 is a deficient number, since it is larger than the sum of its proper divisors (1).

10500155609 is an equidigital number, since it uses as much as digits as its factorization.

10500155609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6750, while the sum is 32.

The spelling of 10500155609 in words is "ten billion, five hundred million, one hundred fifty-five thousand, six hundred nine".