161502040230 has 128 divisors (see below), whose sum is σ = 408614025600. Its totient is φ = 40793088000.

The previous prime is 161502040229. The next prime is 161502040247. The reversal of 161502040230 is 32040205161.

161502040230 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 161502040230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21277276 + ... + 21284864.

It is an arithmetic number, because the mean of its divisors is an integer number (3192297075).

Almost surely, 2^161502040230 is an apocalyptic number.

161502040230 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 161502040230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204307012800).

161502040230 is an abundant number, since it is smaller than the sum of its proper divisors (247111985370).

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

161502040230 is a wasteful number, since it uses less digits than its factorization.

161502040230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8090.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 161502040230 its reverse (32040205161), we get a palindrome (193542245391).

The spelling of 161502040230 in words is "one hundred sixty-one billion, five hundred two million, forty thousand, two hundred thirty".