30155025220032 has 112 divisors (see below), whose sum is σ = 84021040146560. Its totient is φ = 9518483985408.

The previous prime is 30155025220003. The next prime is 30155025220049. The reversal of 30155025220032 is 23002252055103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6562383 + ... + 10167345.

Almost surely, 2^{30155025220032} is an apocalyptic number.

30155025220032 is a gapful number since it is divisible by the number (32) 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 30155025220032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42010520073280).

30155025220032 is an abundant number, since it is smaller than the sum of its proper divisors (53866014926528).

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

30155025220032 is a wasteful number, since it uses less digits than its factorization.

30155025220032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3607290 (or 3607280 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 30155025220032 its reverse (23002252055103), we get a palindrome (53157277275135).

The spelling of 30155025220032 in words is "thirty trillion, one hundred fifty-five billion, twenty-five million, two hundred twenty thousand, thirty-two".