30647071664 has 60 divisors (see below), whose sum is σ = 66093998880. Its totient is φ = 13754083200.

The previous prime is 30647071519. The next prime is 30647071709. The reversal of 30647071664 is 46617074603.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52754 + ... + 253134.

It is an arithmetic number, because the mean of its divisors is an integer number (1101566648).

Almost surely, 2^30647071664 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 30647071664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33046999440).

30647071664 is an abundant number, since it is smaller than the sum of its proper divisors (35446927216).

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

30647071664 is a wasteful number, since it uses less digits than its factorization.

30647071664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200490 (or 200473 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 44.

The spelling of 30647071664 in words is "thirty billion, six hundred forty-seven million, seventy-one thousand, six hundred sixty-four".