75066139984 has 80 divisors (see below), whose sum is σ = 159345176256. Its totient is φ = 33974553600.

The previous prime is 75066139979. The next prime is 75066140021. The reversal of 75066139984 is 48993166057.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64103719 + ... + 64104889.

Almost surely, 2^75066139984 is an apocalyptic number.

It is an amenable number.

75066139984 is an abundant number, since it is smaller than the sum of its proper divisors (84279036272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75066139984 is a wasteful number, since it uses less digits than its factorization.

75066139984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2444 (or 2438 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 58.

The spelling of 75066139984 in words is "seventy-five billion, sixty-six million, one hundred thirty-nine thousand, nine hundred eighty-four".