2755311720220 has 24 divisors (see below), whose sum is σ = 5786313445584. Its totient is φ = 1102094434176.

The previous prime is 2755311720209. The next prime is 2755311720229. The reversal of 2755311720220 is 220271135572.

It is a self number, because there is not a number n which added to its sum of digits gives 2755311720220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2755311720229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1136737 + ... + 2608216.

It is an arithmetic number, because the mean of its divisors is an integer number (241096393566).

Almost surely, 2^{2755311720220} is an apocalyptic number.

2755311720220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2755311720220 is an abundant number, since it is smaller than the sum of its proper divisors (3031001725364).

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

2755311720220 is a wasteful number, since it uses less digits than its factorization.

2755311720220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3781749 (or 3781747 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 37.

Adding to 2755311720220 its reverse (220271135572), we get a palindrome (2975582855792).

The spelling of 2755311720220 in words is "two trillion, seven hundred fifty-five billion, three hundred eleven million, seven hundred twenty thousand, two hundred twenty".