75552166453879 has 2 divisors, whose sum is σ = 75552166453880. Its totient is φ = 75552166453878.

The previous prime is 75552166453873. The next prime is 75552166453921. The reversal of 75552166453879 is 97835466125557.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 75552166453879 - 2²¹ = 75552164356727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75552166453873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37776083226939 + 37776083226940.

It is an arithmetic number, because the mean of its divisors is an integer number (37776083226940).

Almost surely, 2^{75552166453879} is an apocalyptic number.

75552166453879 is a deficient number, since it is larger than the sum of its proper divisors (1).

75552166453879 is an equidigital number, since it uses as much as digits as its factorization.

75552166453879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1905120000, while the sum is 73.

The spelling of 75552166453879 in words is "seventy-five trillion, five hundred fifty-two billion, one hundred sixty-six million, four hundred fifty-three thousand, eight hundred seventy-nine".