20260344672 has 168 divisors, whose sum is σ = 60403114800. Its totient is φ = 6685804800.

The previous prime is 20260344649. The next prime is 20260344683. The reversal of 20260344672 is 27644306202.

20260344672 is a `hidden beast` number, since 2 + 0 + 2 + 603 + 4 + 46 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 27 ways as a sum of consecutive naturals, for example, 2351829 + ... + 2360427.

It is an arithmetic number, because the mean of its divisors is an integer number (359542350).

Almost surely, 2^20260344672 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 20260344672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30201557400).

20260344672 is an abundant number, since it is smaller than the sum of its proper divisors (40142770128).

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

20260344672 is an equidigital number, since it uses as much as digits as its factorization.

20260344672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8728 (or 8705 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 36.

The spelling of 20260344672 in words is "twenty billion, two hundred sixty million, three hundred forty-four thousand, six hundred seventy-two".