161456673876 has 48 divisors (see below), whose sum is σ = 377417880000. Its totient is φ = 53721021952.

The previous prime is 161456673871. The next prime is 161456673887. The reversal of 161456673876 is 678376654161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161456673871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25032700 + ... + 25039148.

It is an arithmetic number, because the mean of its divisors is an integer number (7862872500).

Almost surely, 2^161456673876 is an apocalyptic number.

It is an amenable number.

161456673876 is an abundant number, since it is smaller than the sum of its proper divisors (215961206124).

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

161456673876 is a wasteful number, since it uses less digits than its factorization.

161456673876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9928 (or 9926 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 60.

The spelling of 161456673876 in words is "one hundred sixty-one billion, four hundred fifty-six million, six hundred seventy-three thousand, eight hundred seventy-six".