20102330663664 has 20 divisors (see below), whose sum is σ = 51931020881256. Its totient is φ = 6700776887872.

The previous prime is 20102330663659. The next prime is 20102330663717. The reversal of 20102330663664 is 46636603320102.

It is a super-2 number, since 2×20102330663664² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 209399277699 + ... + 209399277794.

Almost surely, 2^{20102330663664} is an apocalyptic number.

20102330663664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20102330663664 is an abundant number, since it is smaller than the sum of its proper divisors (31828690217592).

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

20102330663664 is a wasteful number, since it uses less digits than its factorization.

20102330663664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418798555504 (or 418798555498 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 42.

Adding to 20102330663664 its reverse (46636603320102), we get a palindrome (66738933983766).

The spelling of 20102330663664 in words is "twenty trillion, one hundred two billion, three hundred thirty million, six hundred sixty-three thousand, six hundred sixty-four".