161740800044 has 12 divisors (see below), whose sum is σ = 283095317568. Its totient is φ = 80856423600.

The previous prime is 161740800007. The next prime is 161740800047. The reversal of 161740800044 is 440008047161.

It is a junction number, because it is equal to n+sod(n) for n = 161740799977 and 161740800013.

It is not an unprimeable number, because it can be changed into a prime (161740800047) 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, 3468047 + ... + 3514374.

It is an arithmetic number, because the mean of its divisors is an integer number (23591276464).

Almost surely, 2^161740800044 is an apocalyptic number.

It is an amenable number.

161740800044 is a deficient number, since it is larger than the sum of its proper divisors (121354517524).

161740800044 is a wasteful number, since it uses less digits than its factorization.

161740800044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6988216 (or 6988214 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The spelling of 161740800044 in words is "one hundred sixty-one billion, seven hundred forty million, eight hundred thousand, forty-four".