75476656064065 has 16 divisors (see below), whose sum is σ = 91181051528400. Its totient is φ = 59975292672000.

The previous prime is 75476656064027. The next prime is 75476656064071. The reversal of 75476656064065 is 56046065667457.

It can be written as a sum of positive squares in 8 ways, for example, as 192088481841 + 75284567582224 = 438279^2 + 8676668^2 .

It is a de Polignac number, because none of the positive numbers 2^k-75476656064065 is a prime.

It is a super-2 number, since 2×75476656064065² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 59720377 + ... + 60971113.

It is an arithmetic number, because the mean of its divisors is an integer number (5698815720525).

Almost surely, 2^{75476656064065} is an apocalyptic number.

It is an amenable number.

75476656064065 is a deficient number, since it is larger than the sum of its proper divisors (15704395464335).

75476656064065 is a wasteful number, since it uses less digits than its factorization.

75476656064065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331892.

The product of its (nonzero) digits is 762048000, while the sum is 67.

The spelling of 75476656064065 in words is "seventy-five trillion, four hundred seventy-six billion, six hundred fifty-six million, sixty-four thousand, sixty-five".