161333600 has 36 divisors (see below), whose sum is σ = 393857604. Its totient is φ = 64533120.

The previous prime is 161333591. The next prime is 161333611. The reversal of 161333600 is 6333161.

161333600 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 100034 + ... + 101633.

It is an arithmetic number, because the mean of its divisors is an integer number (10940489).

Almost surely, 2^161333600 is an apocalyptic number.

161333600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161333600 is an abundant number, since it is smaller than the sum of its proper divisors (232524004).

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

161333600 is a wasteful number, since it uses less digits than its factorization.

161333600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201687 (or 201674 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 161333600 is about 12701.7164194451. The cubic root of 161333600 is about 544.3876634137.

Adding to 161333600 its reverse (6333161), we get a palindrome (167666761).

The spelling of 161333600 in words is "one hundred sixty-one million, three hundred thirty-three thousand, six hundred".