75066139983 has 32 divisors (see below), whose sum is σ = 104296550400. Its totient is φ = 47985315840.

The previous prime is 75066139979. The next prime is 75066140021. The reversal of 75066139983 is 38993166057.

It is a happy number.

It is not a de Polignac number, because 75066139983 - 2² = 75066139979 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75066139943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3690066 + ... + 3710352.

It is an arithmetic number, because the mean of its divisors is an integer number (3259267200).

Almost surely, 2^75066139983 is an apocalyptic number.

75066139983 is a deficient number, since it is larger than the sum of its proper divisors (29230410417).

75066139983 is a wasteful number, since it uses less digits than its factorization.

75066139983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20847.

The product of its (nonzero) digits is 7348320, while the sum is 57.

The spelling of 75066139983 in words is "seventy-five billion, sixty-six million, one hundred thirty-nine thousand, nine hundred eighty-three".