20006664460620 has 48 divisors (see below), whose sum is σ = 56024596884480. Its totient is φ = 5334545151936.

The previous prime is 20006664460609. The next prime is 20006664460637. The reversal of 20006664460620 is 2606446660002.

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 15 ways as a sum of consecutive naturals, for example, 17096782 + ... + 18229461.

It is an arithmetic number, because the mean of its divisors is an integer number (1167179101760).

Almost surely, 2^{20006664460620} is an apocalyptic number.

20006664460620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20006664460620 is an abundant number, since it is smaller than the sum of its proper divisors (36017932423860).

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

20006664460620 is a wasteful number, since it uses less digits than its factorization.

20006664460620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35335694 (or 35335692 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 20006664460620 in words is "twenty trillion, six billion, six hundred sixty-four million, four hundred sixty thousand, six hundred twenty".