75144664247020 has 12 divisors (see below), whose sum is σ = 157803794918784. Its totient is φ = 30057865698800.

The previous prime is 75144664246919. The next prime is 75144664247039. The reversal of 75144664247020 is 2074246644157.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1878616606156 + ... + 1878616606195.

It is an arithmetic number, because the mean of its divisors is an integer number (13150316243232).

Almost surely, 2^{75144664247020} is an apocalyptic number.

It is an amenable number.

75144664247020 is an abundant number, since it is smaller than the sum of its proper divisors (82659130671764).

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

75144664247020 is a wasteful number, since it uses less digits than its factorization.

75144664247020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3757233212360 (or 3757233212358 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 52.

The spelling of 75144664247020 in words is "seventy-five trillion, one hundred forty-four billion, six hundred sixty-four million, two hundred forty-seven thousand, twenty".