161626246344 has 64 divisors (see below), whose sum is σ = 449101512000. Its totient is φ = 53858649600.

The previous prime is 161626246319. The next prime is 161626246381. The reversal of 161626246344 is 443642626161.

161626246344 is a `hidden beast` number, since 1 + 6 + 1 + 6 + 2 + 6 + 2 + 4 + 634 + 4 = 666.

It is a super-2 number, since 2×161626246344² (a number of 23 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 161626246344.

It is an unprimeable number.

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, 589144 + ... + 818744.

It is an arithmetic number, because the mean of its divisors is an integer number (7017211125).

Almost surely, 2^161626246344 is an apocalyptic number.

It is an amenable number.

161626246344 is an abundant number, since it is smaller than the sum of its proper divisors (287475265656).

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

161626246344 is a wasteful number, since it uses less digits than its factorization.

161626246344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232875 (or 232865 counting only the distinct ones).

The product of its digits is 995328, while the sum is 45.

The spelling of 161626246344 in words is "one hundred sixty-one billion, six hundred twenty-six million, two hundred forty-six thousand, three hundred forty-four".