6169544145 has 32 divisors (see below), whose sum is σ = 11003879040. Its totient is φ = 3279683520.

The previous prime is 6169544123. The next prime is 6169544191. The reversal of 6169544145 is 5414459616.

6169544145 is a `hidden beast` number, since 6 + 1 + 69 + 544 + 1 + 45 = 666.

It is not a de Polignac number, because 6169544145 - 2⁸ = 6169543889 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 6169544145.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32986 + ... + 115875.

It is an arithmetic number, because the mean of its divisors is an integer number (343871220).

Almost surely, 2^6169544145 is an apocalyptic number.

It is an amenable number.

6169544145 is a deficient number, since it is larger than the sum of its proper divisors (4834334895).

6169544145 is a wasteful number, since it uses less digits than its factorization.

6169544145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149182 (or 149176 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 6169544145 is about 78546.4457820976. The cubic root of 6169544145 is about 1834.0775377726.

The spelling of 6169544145 in words is "six billion, one hundred sixty-nine million, five hundred forty-four thousand, one hundred forty-five".