30561216425420 has 96 divisors (see below), whose sum is σ = 68706942921792. Its totient is φ = 11378058559488.

The previous prime is 30561216425417. The next prime is 30561216425423. The reversal of 30561216425420 is 2452461216503.

It is an interprime number because it is at equal distance from previous prime (30561216425417) and next prime (30561216425423).

It is a super-2 number, since 2×30561216425420² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30561216425423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42750362 + ... + 43459358.

It is an arithmetic number, because the mean of its divisors is an integer number (715697322102).

Almost surely, 2^{30561216425420} 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 30561216425420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34353471460896).

30561216425420 is an abundant number, since it is smaller than the sum of its proper divisors (38145726496372).

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

30561216425420 is a wasteful number, since it uses less digits than its factorization.

30561216425420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710427 (or 710425 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 30561216425420 in words is "thirty trillion, five hundred sixty-one billion, two hundred sixteen million, four hundred twenty-five thousand, four hundred twenty".