30505620000 has 240 divisors, whose sum is σ = 100345779072. Its totient is φ = 8112000000.

The previous prime is 30505619959. The next prime is 30505620017. The reversal of 30505620000 is 2650503.

It is a tau number, because it is divible by the number of its divisors (240).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 40619625 + ... + 40620375.

Almost surely, 2^30505620000 is an apocalyptic number.

30505620000 is a gapful number since it is divisible by the number (30) 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 30505620000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50172889536).

30505620000 is an abundant number, since it is smaller than the sum of its proper divisors (69840159072).

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

30505620000 is an equidigital number, since it uses as much as digits as its factorization.

30505620000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461 (or 1438 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The spelling of 30505620000 in words is "thirty billion, five hundred five million, six hundred twenty thousand".