162561622716 has 18 divisors (see below), whose sum is σ = 410919657512. Its totient is φ = 54187207560.

The previous prime is 162561622693. The next prime is 162561622721. The reversal of 162561622716 is 617226165261.

162561622716 is a `hidden beast` number, since 1 + 6 + 2 + 5 + 6 + 1 + 622 + 7 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2257800280 + ... + 2257800351.

Almost surely, 2^162561622716 is an apocalyptic number.

It is an amenable number.

162561622716 is an abundant number, since it is smaller than the sum of its proper divisors (248358034796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

162561622716 is a wasteful number, since it uses less digits than its factorization.

162561622716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4515600641 (or 4515600636 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

Adding to 162561622716 its reverse (617226165261), we get a palindrome (779787787977).

The spelling of 162561622716 in words is "one hundred sixty-two billion, five hundred sixty-one million, six hundred twenty-two thousand, seven hundred sixteen".