1650655161 has 24 divisors (see below), whose sum is σ = 2433095496. Its totient is φ = 1077972480.

The previous prime is 1650655159. The next prime is 1650655183. The reversal of 1650655161 is 1615560561.

It can be written as a sum of positive squares in 4 ways, for example, as 925376400 + 725278761 = 30420^2 + 26931^2 .

It is not a de Polignac number, because 1650655161 - 2¹ = 1650655159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1650655361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 347281 + ... + 352001.

It is an arithmetic number, because the mean of its divisors is an integer number (101378979).

Almost surely, 2^1650655161 is an apocalyptic number.

It is an amenable number.

1650655161 is a deficient number, since it is larger than the sum of its proper divisors (782440335).

1650655161 is a wasteful number, since it uses less digits than its factorization.

1650655161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5513 (or 5510 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 1650655161 is about 40628.2556972361. The cubic root of 1650655161 is about 1181.8221300372.

The spelling of 1650655161 in words is "one billion, six hundred fifty million, six hundred fifty-five thousand, one hundred sixty-one".