165333231140 has 144 divisors (see below), whose sum is σ = 436646090496. Its totient is φ = 51474044160.

The previous prime is 165333231083. The next prime is 165333231191. The reversal of 165333231140 is 41132333561.

It is a junction number, because it is equal to n+sod(n) for n = 165333231097 and 165333231106.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16375934 + ... + 16386026.

Almost surely, 2^165333231140 is an apocalyptic number.

165333231140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165333231140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218323045248).

165333231140 is an abundant number, since it is smaller than the sum of its proper divisors (271312859356).

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

165333231140 is a wasteful number, since it uses less digits than its factorization.

165333231140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11098 (or 11085 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 32.

The spelling of 165333231140 in words is "one hundred sixty-five billion, three hundred thirty-three million, two hundred thirty-one thousand, one hundred forty".