650170720424 has 8 divisors (see below), whose sum is σ = 1219070100810. Its totient is φ = 325085360208.

The previous prime is 650170720363. The next prime is 650170720447. The reversal of 650170720424 is 424027071056.

It can be written as a sum of positive squares in only one way, i.e., 434568371524 + 215602348900 = 659218^2 + 464330^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 40635670019 + ... + 40635670034.

Almost surely, 2^650170720424 is an apocalyptic number.

It is an amenable number.

650170720424 is a deficient number, since it is larger than the sum of its proper divisors (568899380386).

650170720424 is a wasteful number, since it uses less digits than its factorization.

650170720424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81271340059 (or 81271340055 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 38.

The spelling of 650170720424 in words is "six hundred fifty billion, one hundred seventy million, seven hundred twenty thousand, four hundred twenty-four".