161754408848 has 20 divisors (see below), whose sum is σ = 313408326000. Its totient is φ = 80874840864.

The previous prime is 161754408847. The next prime is 161754408857. The reversal of 161754408848 is 848804457161.

It is a junction number, because it is equal to n+sod(n) for n = 161754408793 and 161754408802.

It is not an unprimeable number, because it can be changed into a prime (161754408847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504011 + ... + 759957.

It is an arithmetic number, because the mean of its divisors is an integer number (15670416300).

Almost surely, 2^161754408848 is an apocalyptic number.

It is an amenable number.

161754408848 is a deficient number, since it is larger than the sum of its proper divisors (151653917152).

161754408848 is a wasteful number, since it uses less digits than its factorization.

161754408848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295454 (or 295448 counting only the distinct ones).

The product of its (nonzero) digits is 6881280, while the sum is 56.

The spelling of 161754408848 in words is "one hundred sixty-one billion, seven hundred fifty-four million, four hundred eight thousand, eight hundred forty-eight".