50165536145 has 4 divisors (see below), whose sum is σ = 60198643380. Its totient is φ = 40132428912.

The previous prime is 50165536123. The next prime is 50165536159. The reversal of 50165536145 is 54163556105.

50165536145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31202042881 + 18963493264 = 176641^2 + 137708^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50165536145 is a prime.

It is a super-2 number, since 2×50165536145² (a number of 22 digits) contains 22 as substring.

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, 5016553610 + ... + 5016553619.

It is an arithmetic number, because the mean of its divisors is an integer number (15049660845).

Almost surely, 2^50165536145 is an apocalyptic number.

It is an amenable number.

50165536145 is a deficient number, since it is larger than the sum of its proper divisors (10033107235).

50165536145 is a wasteful number, since it uses less digits than its factorization.

50165536145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10033107234.

The product of its (nonzero) digits is 270000, while the sum is 41.

The spelling of 50165536145 in words is "fifty billion, one hundred sixty-five million, five hundred thirty-six thousand, one hundred forty-five".