161950036 has 48 divisors (see below), whose sum is σ = 304995600. Its totient is φ = 75091968.

The previous prime is 161950027. The next prime is 161950049. The reversal of 161950036 is 630059161.

161950036 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 913936 + 161036100 = 956^2 + 12690^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 416130 + ... + 416518.

It is an arithmetic number, because the mean of its divisors is an integer number (6354075).

Almost surely, 2^161950036 is an apocalyptic number.

It is an amenable number.

161950036 is a deficient number, since it is larger than the sum of its proper divisors (143045564).

161950036 is a wasteful number, since it uses less digits than its factorization.

161950036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556 (or 554 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 161950036 is about 12725.9591387054. The cubic root of 161950036 is about 545.0801284985.

The spelling of 161950036 in words is "one hundred sixty-one million, nine hundred fifty thousand, thirty-six".