30666330503 has 4 divisors (see below), whose sum is σ = 30800244840. Its totient is φ = 30532416168.

The previous prime is 30666330493. The next prime is 30666330547. The reversal of 30666330503 is 30503366603.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30666330503 - 2¹² = 30666326407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30666330553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66956825 + ... + 66957282.

It is an arithmetic number, because the mean of its divisors is an integer number (7700061210).

Almost surely, 2^30666330503 is an apocalyptic number.

30666330503 is a deficient number, since it is larger than the sum of its proper divisors (133914337).

30666330503 is a wasteful number, since it uses less digits than its factorization.

30666330503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133914336.

The product of its (nonzero) digits is 87480, while the sum is 35.

The spelling of 30666330503 in words is "thirty billion, six hundred sixty-six million, three hundred thirty thousand, five hundred three".