50145650165 has 16 divisors (see below), whose sum is σ = 64818795888. Its totient is φ = 37021956096.

The previous prime is 50145650143. The next prime is 50145650221. The reversal of 50145650165 is 56105654105.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 9377598244 + 40768051921 = 96838^2 + 201911^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50145650165 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196037 + ... + 372453.

It is an arithmetic number, because the mean of its divisors is an integer number (4051174743).

Almost surely, 2^50145650165 is an apocalyptic number.

It is an amenable number.

50145650165 is a deficient number, since it is larger than the sum of its proper divisors (14673145723).

50145650165 is a wasteful number, since it uses less digits than its factorization.

50145650165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180808.

The product of its (nonzero) digits is 90000, while the sum is 38.

The spelling of 50145650165 in words is "fifty billion, one hundred forty-five million, six hundred fifty thousand, one hundred sixty-five".