75016421516 has 12 divisors (see below), whose sum is σ = 132553289232. Its totient is φ = 37144053168.

The previous prime is 75016421483. The next prime is 75016421521. The reversal of 75016421516 is 61512461057.

It is a self number, because there is not a number n which added to its sum of digits gives 75016421516.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91038935 + ... + 91039758.

It is an arithmetic number, because the mean of its divisors is an integer number (11046107436).

Almost surely, 2^75016421516 is an apocalyptic number.

It is an amenable number.

75016421516 is a deficient number, since it is larger than the sum of its proper divisors (57536867716).

75016421516 is a wasteful number, since it uses less digits than its factorization.

75016421516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182078800 (or 182078798 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 38.

The spelling of 75016421516 in words is "seventy-five billion, sixteen million, four hundred twenty-one thousand, five hundred sixteen".