20447010132 has 96 divisors (see below), whose sum is σ = 52819845120. Its totient is φ = 6130650240.

The previous prime is 20447010131. The next prime is 20447010149. The reversal of 20447010132 is 23101074402.

It is a happy number.

It is a super-2 number, since 2×20447010132² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20447010131) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 347313 + ... + 401895.

It is an arithmetic number, because the mean of its divisors is an integer number (550206720).

Almost surely, 2^20447010132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20447010132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26409922560).

20447010132 is an abundant number, since it is smaller than the sum of its proper divisors (32372834988).

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

20447010132 is a wasteful number, since it uses less digits than its factorization.

20447010132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54693 (or 54691 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

Adding to 20447010132 its reverse (23101074402), we get a palindrome (43548084534).

The spelling of 20447010132 in words is "twenty billion, four hundred forty-seven million, ten thousand, one hundred thirty-two".