30561163535016 has 96 divisors (see below), whose sum is σ = 83708649109800. Its totient is φ = 10071530219520.

The previous prime is 30561163534997. The next prime is 30561163535027. The reversal of 30561163535016 is 61053536116503.

30561163535016 is a `hidden beast` number, since 3 + 0 + 5 + 6 + 1 + 1 + 635 + 3 + 5 + 0 + 1 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4214028896100 + 26347134638916 = 2052810^2 + 5132946^2 .

It is a super-2 number, since 2×30561163535016² (a number of 28 digits) contains 22 as substring.

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, 61660860 + ... + 62154516.

Almost surely, 2^{30561163535016} is an apocalyptic number.

30561163535016 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 30561163535016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41854324554900).

30561163535016 is an abundant number, since it is smaller than the sum of its proper divisors (53147485574784).

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

30561163535016 is a wasteful number, since it uses less digits than its factorization.

30561163535016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503419 (or 503412 counting only the distinct ones).

The product of its (nonzero) digits is 729000, while the sum is 45.

The spelling of 30561163535016 in words is "thirty trillion, five hundred sixty-one billion, one hundred sixty-three million, five hundred thirty-five thousand, sixteen".