20663202332 has 6 divisors (see below), whose sum is σ = 36160604088. Its totient is φ = 10331601164.

The previous prime is 20663202311. The next prime is 20663202367. The reversal of 20663202332 is 23320236602.

It is a super-2 number, since 2×20663202332² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20663202295 and 20663202304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2582900288 + ... + 2582900295.

It is an arithmetic number, because the mean of its divisors is an integer number (6026767348).

Almost surely, 2^20663202332 is an apocalyptic number.

It is an amenable number.

20663202332 is a deficient number, since it is larger than the sum of its proper divisors (15497401756).

20663202332 is a wasteful number, since it uses less digits than its factorization.

20663202332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5165800587 (or 5165800585 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 20663202332 its reverse (23320236602), we get a palindrome (43983438934).

The spelling of 20663202332 in words is "twenty billion, six hundred sixty-three million, two hundred two thousand, three hundred thirty-two".