161000650004 has 24 divisors (see below), whose sum is σ = 284910399648. Its totient is φ = 79600462560.

The previous prime is 161000650001. The next prime is 161000650033. The reversal of 161000650004 is 400056000161.

161000650004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161000650001) 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 7 ways as a sum of consecutive naturals, for example, 116114 + ... + 579209.

It is an arithmetic number, because the mean of its divisors is an integer number (11871266652).

Almost surely, 2^161000650004 is an apocalyptic number.

It is an amenable number.

161000650004 is a deficient number, since it is larger than the sum of its proper divisors (123909749644).

161000650004 is a wasteful number, since it uses less digits than its factorization.

161000650004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695975 (or 695973 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 161000650004 its reverse (400056000161), we get a palindrome (561056650165).

The spelling of 161000650004 in words is "one hundred sixty-one billion, six hundred fifty thousand, four".