2660356411272 has 320 divisors, whose sum is σ = 8970339840000. Its totient is φ = 719600402304.

The previous prime is 2660356411261. The next prime is 2660356411301. The reversal of 2660356411272 is 2721146530662.

2660356411272 is a `hidden beast` number, since 2 + 6 + 6 + 0 + 3 + 564 + 1 + 12 + 72 = 666.

2660356411272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 135040479 + ... + 135060177.

It is an arithmetic number, because the mean of its divisors is an integer number (28032312000).

Almost surely, 2^{2660356411272} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2660356411272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4485169920000).

2660356411272 is an abundant number, since it is smaller than the sum of its proper divisors (6309983428728).

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

2660356411272 is a wasteful number, since it uses less digits than its factorization.

2660356411272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21310 (or 21297 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 2660356411272 in words is "two trillion, six hundred sixty billion, three hundred fifty-six million, four hundred eleven thousand, two hundred seventy-two".