16105531023 has 8 divisors (see below), whose sum is σ = 23860046000. Its totient is φ = 10737020664.

The previous prime is 16105530997. The next prime is 16105531073. The reversal of 16105531023 is 32013550161.

16105531023 is a `hidden beast` number, since 1 + 6 + 1 + 0 + 553 + 102 + 3 = 666.

It is not a de Polignac number, because 16105531023 - 2²⁸ = 15837095567 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 596501149 = 16105531023 / (1 + 6 + 1 + 0 + 5 + 5 + 3 + 1 + 0 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16105531073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298250548 + ... + 298250601.

It is an arithmetic number, because the mean of its divisors is an integer number (2982505750).

Almost surely, 2^16105531023 is an apocalyptic number.

16105531023 is a deficient number, since it is larger than the sum of its proper divisors (7754514977).

16105531023 is an equidigital number, since it uses as much as digits as its factorization.

16105531023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596501158 (or 596501152 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The spelling of 16105531023 in words is "sixteen billion, one hundred five million, five hundred thirty-one thousand, twenty-three".