266020144002020 has 12 divisors (see below), whose sum is σ = 558642302404284. Its totient is φ = 106408057600800.

The previous prime is 266020144001987. The next prime is 266020144002023. The reversal of 266020144002020 is 20200441020662.

It can be written as a sum of positive squares in 2 ways, for example, as 59808476156836 + 206211667845184 = 7733594^2 + 14360072^2 .

It is not an unprimeable number, because it can be changed into a prime (266020144002023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6650503600031 + ... + 6650503600070.

It is an arithmetic number, because the mean of its divisors is an integer number (46553525200357).

Almost surely, 2^{266020144002020} is an apocalyptic number.

266020144002020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266020144002020 is an abundant number, since it is smaller than the sum of its proper divisors (292622158402264).

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

266020144002020 is a wasteful number, since it uses less digits than its factorization.

266020144002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13301007200110 (or 13301007200108 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 266020144002020 its reverse (20200441020662), we get a palindrome (286220585022682).

The spelling of 266020144002020 in words is "two hundred sixty-six trillion, twenty billion, one hundred forty-four million, two thousand, twenty".