30172644216 has 144 divisors (see below), whose sum is σ = 96731533080. Its totient is φ = 8439868800.

The previous prime is 30172644211. The next prime is 30172644221. The reversal of 30172644216 is 61244627103.

30172644216 is a `hidden beast` number, since 3 + 0 + 1 + 7 + 2 + 644 + 2 + 1 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (30172644211) and next prime (30172644221).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30172644211) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 19950 + ... + 246461.

Almost surely, 2^30172644216 is an apocalyptic number.

30172644216 is a gapful number since it is divisible by the number (36) 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 30172644216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48365766540).

30172644216 is an abundant number, since it is smaller than the sum of its proper divisors (66558888864).

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

30172644216 is a wasteful number, since it uses less digits than its factorization.

30172644216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266458 (or 266440 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The spelling of 30172644216 in words is "thirty billion, one hundred seventy-two million, six hundred forty-four thousand, two hundred sixteen".