30206645712 has 140 divisors (see below), whose sum is σ = 88067609344. Its totient is φ = 10032206400.

The previous prime is 30206645699. The next prime is 30206645731. The reversal of 30206645712 is 21754660203.

30206645712 is a `hidden beast` number, since 3 + 0 + 2 + 0 + 6 + 645 + 7 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 3296337 + ... + 3305487.

Almost surely, 2^30206645712 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 30206645712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44033804672).

30206645712 is an abundant number, since it is smaller than the sum of its proper divisors (57860963632).

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

30206645712 is an equidigital number, since it uses as much as digits as its factorization.

30206645712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9460 (or 9439 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 30206645712 in words is "thirty billion, two hundred six million, six hundred forty-five thousand, seven hundred twelve".