30561000366 has 64 divisors (see below), whose sum is σ = 67020710400. Its totient is φ = 9232928640.

The previous prime is 30561000341. The next prime is 30561000383. The reversal of 30561000366 is 66300016503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2844681 + ... + 2855403.

It is an arithmetic number, because the mean of its divisors is an integer number (1047198600).

Almost surely, 2^30561000366 is an apocalyptic number.

30561000366 is the 93444-th nonagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30561000366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33510355200).

30561000366 is an abundant number, since it is smaller than the sum of its proper divisors (36459710034).

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

30561000366 is a wasteful number, since it uses less digits than its factorization.

30561000366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11401.

The product of its (nonzero) digits is 9720, while the sum is 30.

Adding to 30561000366 its reverse (66300016503), we get a palindrome (96861016869).

The spelling of 30561000366 in words is "thirty billion, five hundred sixty-one million, three hundred sixty-six", and thus it is an aban number.