2660203216242 has 512 divisors, whose sum is σ = 7211151360000. Its totient is φ = 716285306880.

The previous prime is 2660203216169. The next prime is 2660203216271. The reversal of 2660203216242 is 2426123020662.

2660203216242 is a `hidden beast` number, since 2 + 6 + 6 + 0 + 2 + 0 + 3 + 21 + 624 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2660203216197 and 2660203216206.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 7248509943 + ... + 7248510309.

It is an arithmetic number, because the mean of its divisors is an integer number (14084280000).

Almost surely, 2^{2660203216242} is an apocalyptic number.

2660203216242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2660203216242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3605575680000).

2660203216242 is an abundant number, since it is smaller than the sum of its proper divisors (4550948143758).

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

2660203216242 is a wasteful number, since it uses less digits than its factorization.

2660203216242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743 (or 737 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 2660203216242 in words is "two trillion, six hundred sixty billion, two hundred three million, two hundred sixteen thousand, two hundred forty-two".