75533554664 has 8 divisors (see below), whose sum is σ = 141625415010. Its totient is φ = 37766777328.

The previous prime is 75533554643. The next prime is 75533554727. The reversal of 75533554664 is 46645533557.

It can be written as a sum of positive squares in only one way, i.e., 75278896900 + 254657764 = 274370^2 + 15958^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 4720847159 + ... + 4720847174.

Almost surely, 2^75533554664 is an apocalyptic number.

It is an amenable number.

75533554664 is a deficient number, since it is larger than the sum of its proper divisors (66091860346).

75533554664 is a wasteful number, since it uses less digits than its factorization.

75533554664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9441694339 (or 9441694335 counting only the distinct ones).

The product of its digits is 22680000, while the sum is 53.

The spelling of 75533554664 in words is "seventy-five billion, five hundred thirty-three million, five hundred fifty-four thousand, six hundred sixty-four".