165151818330 has 64 divisors (see below), whose sum is σ = 406245805056. Its totient is φ = 42943680000.

The previous prime is 165151818317. The next prime is 165151818347. The reversal of 165151818330 is 33818151561.

It is a happy number.

165151818330 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2365320 + ... + 2434140.

It is an arithmetic number, because the mean of its divisors is an integer number (6347590704).

Almost surely, 2^165151818330 is an apocalyptic number.

165151818330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 165151818330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203122902528).

165151818330 is an abundant number, since it is smaller than the sum of its proper divisors (241093986726).

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

165151818330 is a wasteful number, since it uses less digits than its factorization.

165151818330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70823.

The product of its (nonzero) digits is 86400, while the sum is 42.

Adding to 165151818330 its reverse (33818151561), we get a palindrome (198969969891).

The spelling of 165151818330 in words is "one hundred sixty-five billion, one hundred fifty-one million, eight hundred eighteen thousand, three hundred thirty".