1141243656660 has 240 divisors, whose sum is σ = 3864604867200. Its totient is φ = 281061639936.

The previous prime is 1141243656643. The next prime is 1141243656667. The reversal of 1141243656660 is 666563421411.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141243656667) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 552451 + ... + 1608629.

It is an arithmetic number, because the mean of its divisors is an integer number (16102520280).

Almost surely, 2^{1141243656660} is an apocalyptic number.

1141243656660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1141243656660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1932302433600).

1141243656660 is an abundant number, since it is smaller than the sum of its proper divisors (2723361210540).

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

1141243656660 is a wasteful number, since it uses less digits than its factorization.

1141243656660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056252 (or 1056241 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 1141243656660 in words is "one trillion, one hundred forty-one billion, two hundred forty-three million, six hundred fifty-six thousand, six hundred sixty".