30155161204432 has 120 divisors (see below), whose sum is σ = 65081666069280. Its totient is φ = 13423564976640.

The previous prime is 30155161204429. The next prime is 30155161204447. The reversal of 30155161204432 is 23440216155103.

It is a junction number, because it is equal to n+sod(n) for n = 30155161204391 and 30155161204400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 270372294 + ... + 270483802.

It is an arithmetic number, because the mean of its divisors is an integer number (542347217244).

Almost surely, 2^{30155161204432} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30155161204432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32540833034640).

30155161204432 is an abundant number, since it is smaller than the sum of its proper divisors (34926504864848).

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

30155161204432 is a wasteful number, since it uses less digits than its factorization.

30155161204432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112181 (or 112122 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 30155161204432 its reverse (23440216155103), we get a palindrome (53595377359535).

The spelling of 30155161204432 in words is "thirty trillion, one hundred fifty-five billion, one hundred sixty-one million, two hundred four thousand, four hundred thirty-two".