30656600000 has 252 divisors, whose sum is σ = 82427646168. Its totient is φ = 11306880000.

The previous prime is 30656599891. The next prime is 30656600003. The reversal of 30656600000 is 665603.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30656600003) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 33799547 + ... + 33800453.

It is an arithmetic number, because the mean of its divisors is an integer number (327093834).

Almost surely, 2^30656600000 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 30656600000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41213823084).

30656600000 is an abundant number, since it is smaller than the sum of its proper divisors (51771046168).

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

30656600000 is an frugal number, since it uses more digits than its factorization.

30656600000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970 (or 927 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The spelling of 30656600000 in words is "thirty billion, six hundred fifty-six million, six hundred thousand".