20467310512 has 80 divisors (see below), whose sum is σ = 45511372800. Its totient is φ = 8830142720.

The previous prime is 20467310471. The next prime is 20467310537. The reversal of 20467310512 is 21501376402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267153 + ... + 335119.

It is an arithmetic number, because the mean of its divisors is an integer number (568892160).

Almost surely, 2^20467310512 is an apocalyptic number.

20467310512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20467310512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22755686400).

20467310512 is an abundant number, since it is smaller than the sum of its proper divisors (25044062288).

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

20467310512 is a wasteful number, since it uses less digits than its factorization.

20467310512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68074 (or 68068 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

Adding to 20467310512 its reverse (21501376402), we get a palindrome (41968686914).

The spelling of 20467310512 in words is "twenty billion, four hundred sixty-seven million, three hundred ten thousand, five hundred twelve".