2646304611220 has 12 divisors (see below), whose sum is σ = 5557239683604. Its totient is φ = 1058521844480.

The previous prime is 2646304611161. The next prime is 2646304611271. The reversal of 2646304611220 is 221164036462.

It can be written as a sum of positive squares in 2 ways, for example, as 317372236164 + 2328932375056 = 563358^2 + 1526084^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2646304611220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66157615261 + ... + 66157615300.

It is an arithmetic number, because the mean of its divisors is an integer number (463103306967).

Almost surely, 2^{2646304611220} is an apocalyptic number.

2646304611220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2646304611220 is an abundant number, since it is smaller than the sum of its proper divisors (2910935072384).

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

2646304611220 is a wasteful number, since it uses less digits than its factorization.

2646304611220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132315230570 (or 132315230568 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 37.

Adding to 2646304611220 its reverse (221164036462), we get a palindrome (2867468647682).

The spelling of 2646304611220 in words is "two trillion, six hundred forty-six billion, three hundred four million, six hundred eleven thousand, two hundred twenty".