20632470140 has 24 divisors (see below), whose sum is σ = 43331086512. Its totient is φ = 8252435840.

The previous prime is 20632470119. The next prime is 20632470197. The reversal of 20632470140 is 4107423602.

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 7 ways as a sum of consecutive naturals, for example, 414047 + ... + 461193.

It is an arithmetic number, because the mean of its divisors is an integer number (1805461938).

Almost surely, 2^20632470140 is an apocalyptic number.

20632470140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20632470140 is an abundant number, since it is smaller than the sum of its proper divisors (22698616372).

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

20632470140 is a wasteful number, since it uses less digits than its factorization.

20632470140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69037 (or 69035 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

Adding to 20632470140 its reverse (4107423602), we get a palindrome (24739893742).

The spelling of 20632470140 in words is "twenty billion, six hundred thirty-two million, four hundred seventy thousand, one hundred forty".