20268340066280 has 32 divisors (see below), whose sum is σ = 45620929018440. Its totient is φ = 8104284672000.

The previous prime is 20268340066267. The next prime is 20268340066291. The reversal of 20268340066280 is 8266004386202.

It can be written as a sum of positive squares in 4 ways, for example, as 13496968087684 + 6771371978596 = 3673822^2 + 2602186^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95247221 + ... + 95459780.

Almost surely, 2^{20268340066280} is an apocalyptic number.

20268340066280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20268340066280 is an abundant number, since it is smaller than the sum of its proper divisors (25352588952160).

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

20268340066280 is a wasteful number, since it uses less digits than its factorization.

20268340066280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190709669 (or 190709665 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 47.

The spelling of 20268340066280 in words is "twenty trillion, two hundred sixty-eight billion, three hundred forty million, sixty-six thousand, two hundred eighty".