650513135161 has 4 divisors (see below), whose sum is σ = 650527390800. Its totient is φ = 650498879524.

The previous prime is 650513135149. The next prime is 650513135179. The reversal of 650513135161 is 161531315056.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-650513135161 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 650513135161.

It is not an unprimeable number, because it can be changed into a prime (650513135191) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7059151 + ... + 7150708.

It is an arithmetic number, because the mean of its divisors is an integer number (162631847700).

Almost surely, 2^650513135161 is an apocalyptic number.

It is an amenable number.

650513135161 is a deficient number, since it is larger than the sum of its proper divisors (14255639).

650513135161 is a wasteful number, since it uses less digits than its factorization.

650513135161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14255638.

The product of its (nonzero) digits is 40500, while the sum is 37.

The spelling of 650513135161 in words is "six hundred fifty billion, five hundred thirteen million, one hundred thirty-five thousand, one hundred sixty-one".