161005596 has 24 divisors (see below), whose sum is σ = 381840144. Its totient is φ = 52788480.

The previous prime is 161005591. The next prime is 161005613. The reversal of 161005596 is 695500161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161005591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109245 + ... + 110708.

It is an arithmetic number, because the mean of its divisors is an integer number (15910006).

Almost surely, 2^161005596 is an apocalyptic number.

It is an amenable number.

161005596 is an abundant number, since it is smaller than the sum of its proper divisors (220834548).

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

161005596 is a wasteful number, since it uses less digits than its factorization.

161005596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220021 (or 220019 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 161005596 is about 12688.7980518251. The cubic root of 161005596 is about 544.0184853508.

The spelling of 161005596 in words is "one hundred sixty-one million, five thousand, five hundred ninety-six".