20007666260 has 96 divisors (see below), whose sum is σ = 44167116672. Its totient is φ = 7606241280.

The previous prime is 20007666257. The next prime is 20007666281. The reversal of 20007666260 is 6266670002.

It is a self number, because there is not a number n which added to its sum of digits gives 20007666260.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4966367 + ... + 4970393.

It is an arithmetic number, because the mean of its divisors is an integer number (460074132).

Almost surely, 2^20007666260 is an apocalyptic number.

20007666260 is a gapful number since it is divisible by the number (20) 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 20007666260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22083558336).

20007666260 is an abundant number, since it is smaller than the sum of its proper divisors (24159450412).

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

20007666260 is a wasteful number, since it uses less digits than its factorization.

20007666260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4233 (or 4231 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The spelling of 20007666260 in words is "twenty billion, seven million, six hundred sixty-six thousand, two hundred sixty".