30556080220 has 12 divisors (see below), whose sum is σ = 64167768504. Its totient is φ = 12222432080.

The previous prime is 30556080179. The next prime is 30556080227. The reversal of 30556080220 is 2208065503.

It is a happy number.

It is a super-2 number, since 2×30556080220² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30556080227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 763901986 + ... + 763902025.

It is an arithmetic number, because the mean of its divisors is an integer number (5347314042).

Almost surely, 2^30556080220 is an apocalyptic number.

It is an amenable number.

30556080220 is an abundant number, since it is smaller than the sum of its proper divisors (33611688284).

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

30556080220 is a wasteful number, since it uses less digits than its factorization.

30556080220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527804020 (or 1527804018 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 30556080220 in words is "thirty billion, five hundred fifty-six million, eighty thousand, two hundred twenty".