30666330492 has 96 divisors (see below), whose sum is σ = 82859492352. Its totient is φ = 8646414336.

The previous prime is 30666330377. The next prime is 30666330493. The reversal of 30666330492 is 29403366603.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30666330493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2528988 + ... + 2541084.

It is an arithmetic number, because the mean of its divisors is an integer number (863119712).

Almost surely, 2^30666330492 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 30666330492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41429746176).

30666330492 is an abundant number, since it is smaller than the sum of its proper divisors (52193161860).

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

30666330492 is a wasteful number, since it uses less digits than its factorization.

30666330492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12507 (or 12505 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 42.

The spelling of 30666330492 in words is "thirty billion, six hundred sixty-six million, three hundred thirty thousand, four hundred ninety-two".