161098604 has 6 divisors (see below), whose sum is σ = 281922564. Its totient is φ = 80549300.

The previous prime is 161098591. The next prime is 161098607. The reversal of 161098604 is 406890161.

161098604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (161098607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20137322 + ... + 20137329.

It is an arithmetic number, because the mean of its divisors is an integer number (46987094).

Almost surely, 2^161098604 is an apocalyptic number.

It is an amenable number.

161098604 is a deficient number, since it is larger than the sum of its proper divisors (120823960).

161098604 is a wasteful number, since it uses less digits than its factorization.

161098604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40274655 (or 40274653 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 161098604 is about 12692.4624876341. The cubic root of 161098604 is about 544.1232194567.

The spelling of 161098604 in words is "one hundred sixty-one million, ninety-eight thousand, six hundred four".