6695139465 has 24 divisors (see below), whose sum is σ = 13262753088. Its totient is φ = 3060635040.

The previous prime is 6695139463. The next prime is 6695139467. The reversal of 6695139465 is 5649315966.

6695139465 is a `hidden beast` number, since 6 + 69 + 513 + 9 + 4 + 65 = 666.

It is an interprime number because it is at equal distance from previous prime (6695139463) and next prime (6695139467).

It is not a de Polignac number, because 6695139465 - 2¹ = 6695139463 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6695139463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10626891 + ... + 10627520.

It is an arithmetic number, because the mean of its divisors is an integer number (552614712).

Almost surely, 2^6695139465 is an apocalyptic number.

It is an amenable number.

6695139465 is a deficient number, since it is larger than the sum of its proper divisors (6567613623).

6695139465 is a wasteful number, since it uses less digits than its factorization.

6695139465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21254429 (or 21254426 counting only the distinct ones).

The product of its digits is 5248800, while the sum is 54.

The square root of 6695139465 is about 81823.8318890041. The cubic root of 6695139465 is about 1884.7476452039.

The spelling of 6695139465 in words is "six billion, six hundred ninety-five million, one hundred thirty-nine thousand, four hundred sixty-five".