20631456332 has 48 divisors (see below), whose sum is σ = 38305612800. Its totient is φ = 9711004800.

The previous prime is 20631456301. The next prime is 20631456347. The reversal of 20631456332 is 23365413602.

It is a super-3 number, since 3×20631456332³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20631456292 and 20631456301.

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 15 ways as a sum of consecutive naturals, for example, 528419 + ... + 566117.

It is an arithmetic number, because the mean of its divisors is an integer number (798033600).

Almost surely, 2^20631456332 is an apocalyptic number.

It is an amenable number.

20631456332 is a deficient number, since it is larger than the sum of its proper divisors (17674156468).

20631456332 is a wasteful number, since it uses less digits than its factorization.

20631456332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37862 (or 37860 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 35.

Adding to 20631456332 its reverse (23365413602), we get a palindrome (43996869934).

The spelling of 20631456332 in words is "twenty billion, six hundred thirty-one million, four hundred fifty-six thousand, three hundred thirty-two".