20330666149 has 8 divisors (see below), whose sum is σ = 20667471840. Its totient is φ = 19993974000.

The previous prime is 20330666143. The next prime is 20330666177. The reversal of 20330666149 is 94166603302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20330666149 - 2³ = 20330666141 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 (20330666141) 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 7 ways as a sum of consecutive naturals, for example, 381174 + ... + 431224.

It is an arithmetic number, because the mean of its divisors is an integer number (2583433980).

Almost surely, 2^20330666149 is an apocalyptic number.

It is an amenable number.

20330666149 is a deficient number, since it is larger than the sum of its proper divisors (336805691).

20330666149 is an equidigital number, since it uses as much as digits as its factorization.

20330666149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56771.

The product of its (nonzero) digits is 139968, while the sum is 40.

The spelling of 20330666149 in words is "twenty billion, three hundred thirty million, six hundred sixty-six thousand, one hundred forty-nine".