20545100332 has 48 divisors (see below), whose sum is σ = 37495019520. Its totient is φ = 9839491200.

The previous prime is 20545100291. The next prime is 20545100399. The reversal of 20545100332 is 23300154502.

It is a super-2 number, since 2×20545100332² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20545100297 and 20545100306.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6436857 + ... + 6440047.

It is an arithmetic number, because the mean of its divisors is an integer number (781146240).

Almost surely, 2^20545100332 is an apocalyptic number.

It is an amenable number.

20545100332 is a deficient number, since it is larger than the sum of its proper divisors (16949919188).

20545100332 is a wasteful number, since it uses less digits than its factorization.

20545100332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3742 (or 3740 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 20545100332 its reverse (23300154502), we get a palindrome (43845254834).

The spelling of 20545100332 in words is "twenty billion, five hundred forty-five million, one hundred thousand, three hundred thirty-two".