30420016016 has 80 divisors (see below), whose sum is σ = 66286007424. Its totient is φ = 13418668032.

The previous prime is 30420016013. The next prime is 30420016021. The reversal of 30420016016 is 61061002403.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 30420015982 and 30420016000.

It is not an unprimeable number, because it can be changed into a prime (30420016013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9695600 + ... + 9698736.

Almost surely, 2^30420016016 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 30420016016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33143003712).

30420016016 is an abundant number, since it is smaller than the sum of its proper divisors (35865991408).

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

30420016016 is a wasteful number, since it uses less digits than its factorization.

30420016016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5208 (or 5202 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 30420016016 its reverse (61061002403), we get a palindrome (91481018419).

The spelling of 30420016016 in words is "thirty billion, four hundred twenty million, sixteen thousand, sixteen".