20466663557060 has 48 divisors (see below), whose sum is σ = 49121401432320. Its totient is φ = 7016940520320.

The previous prime is 20466663557047. The next prime is 20466663557077. The reversal of 20466663557060 is 6075536666402.

It is a junction number, because it is equal to n+sod(n) for n = 20466663556987 and 20466663557005.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2843270 + ... + 7001250.

It is an arithmetic number, because the mean of its divisors is an integer number (1023362529840).

Almost surely, 2^{20466663557060} is an apocalyptic number.

20466663557060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20466663557060 is an abundant number, since it is smaller than the sum of its proper divisors (28654737875260).

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

20466663557060 is a wasteful number, since it uses less digits than its factorization.

20466663557060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4193156 (or 4193154 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 56.

The spelling of 20466663557060 in words is "twenty trillion, four hundred sixty-six billion, six hundred sixty-three million, five hundred fifty-seven thousand, sixty".