161560620116 has 48 divisors (see below), whose sum is σ = 331431703680. Its totient is φ = 67480283520.

The previous prime is 161560620107. The next prime is 161560620119. The reversal of 161560620116 is 611026065161.

161560620116 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161560620116² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161560620119) 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 15 ways as a sum of consecutive naturals, for example, 247730 + ... + 620073.

It is an arithmetic number, because the mean of its divisors is an integer number (6904827160).

Almost surely, 2^161560620116 is an apocalyptic number.

It is an amenable number.

161560620116 is an abundant number, since it is smaller than the sum of its proper divisors (169871083564).

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

161560620116 is a wasteful number, since it uses less digits than its factorization.

161560620116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867984 (or 867982 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

Adding to 161560620116 its reverse (611026065161), we get a palindrome (772586685277).

The spelling of 161560620116 in words is "one hundred sixty-one billion, five hundred sixty million, six hundred twenty thousand, one hundred sixteen".