10165511155 has 4 divisors (see below), whose sum is σ = 12198613392. Its totient is φ = 8132408920.

The previous prime is 10165511117. The next prime is 10165511159. The reversal of 10165511155 is 55111556101.

10165511155 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55111556101 = 7 ⋅7873079443.

It is a de Polignac number, because none of the positive numbers 2^k-10165511155 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10165511159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1016551111 + ... + 1016551120.

It is an arithmetic number, because the mean of its divisors is an integer number (3049653348).

Almost surely, 2^10165511155 is an apocalyptic number.

10165511155 is a deficient number, since it is larger than the sum of its proper divisors (2033102237).

10165511155 is an equidigital number, since it uses as much as digits as its factorization.

10165511155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2033102236.

The product of its (nonzero) digits is 3750, while the sum is 31.

The spelling of 10165511155 in words is "ten billion, one hundred sixty-five million, five hundred eleven thousand, one hundred fifty-five".