1650612122161 has 16 divisors (see below), whose sum is σ = 1739637951040. Its totient is φ = 1561802679360.

The previous prime is 1650612122111. The next prime is 1650612122207. The reversal of 1650612122161 is 1612212160561.

It is a cyclic number.

It is not a de Polignac number, because 1650612122161 - 2²⁷ = 1650477904433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1650612122101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53348866 + ... + 53379796.

It is an arithmetic number, because the mean of its divisors is an integer number (108727371940).

Almost surely, 2^{1650612122161} is an apocalyptic number.

It is an amenable number.

1650612122161 is a deficient number, since it is larger than the sum of its proper divisors (89025828879).

1650612122161 is a wasteful number, since it uses less digits than its factorization.

1650612122161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34336.

The product of its (nonzero) digits is 8640, while the sum is 34.

The spelling of 1650612122161 in words is "one trillion, six hundred fifty billion, six hundred twelve million, one hundred twenty-two thousand, one hundred sixty-one".