10556061165 has 24 divisors (see below), whose sum is σ = 19704648600. Its totient is φ = 5196829824.

The previous prime is 10556061151. The next prime is 10556061179. The reversal of 10556061165 is 56116065501.

It is an interprime number because it is at equal distance from previous prime (10556061151) and next prime (10556061179).

It can be written as a sum of positive squares in 4 ways, for example, as 406304649 + 10149756516 = 20157^2 + 100746^2 .

It is not a de Polignac number, because 10556061165 - 2⁶ = 10556061101 is a prime.

It is a super-2 number, since 2×10556061165² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 9021690 + ... + 9022859.

It is an arithmetic number, because the mean of its divisors is an integer number (821027025).

Almost surely, 2^10556061165 is an apocalyptic number.

10556061165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10556061165 is a deficient number, since it is larger than the sum of its proper divisors (9148587435).

10556061165 is a wasteful number, since it uses less digits than its factorization.

10556061165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18044573 (or 18044570 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 10556061165 in words is "ten billion, five hundred fifty-six million, sixty-one thousand, one hundred sixty-five".