75120517643020 has 48 divisors (see below), whose sum is σ = 164667588458688. Its totient is φ = 28732042845440.

The previous prime is 75120517643011. The next prime is 75120517643107. The reversal of 75120517643020 is 2034671502157.

It is a happy 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, 26253151 + ... + 28973590.

It is an arithmetic number, because the mean of its divisors is an integer number (3430574759556).

Almost surely, 2^{75120517643020} is an apocalyptic number.

It is an amenable number.

75120517643020 is an abundant number, since it is smaller than the sum of its proper divisors (89547070815668).

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

75120517643020 is a wasteful number, since it uses less digits than its factorization.

75120517643020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55229730 (or 55229728 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 43.

The spelling of 75120517643020 in words is "seventy-five trillion, one hundred twenty billion, five hundred seventeen million, six hundred forty-three thousand, twenty".