75061515156 has 12 divisors (see below), whose sum is σ = 175143535392. Its totient is φ = 25020505048.

The previous prime is 75061515149. The next prime is 75061515181. The reversal of 75061515156 is 65151516057.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 3127563120 + ... + 3127563143.

It is an arithmetic number, because the mean of its divisors is an integer number (14595294616).

Almost surely, 2^75061515156 is an apocalyptic number.

It is an amenable number.

75061515156 is an abundant number, since it is smaller than the sum of its proper divisors (100082020236).

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

75061515156 is a wasteful number, since it uses less digits than its factorization.

75061515156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6255126270 (or 6255126268 counting only the distinct ones).

The product of its (nonzero) digits is 157500, while the sum is 42.

Subtracting from 75061515156 its reverse (65151516057), we obtain a palindrome (9909999099).

The spelling of 75061515156 in words is "seventy-five billion, sixty-one million, five hundred fifteen thousand, one hundred fifty-six".