1143663645320 has 64 divisors (see below), whose sum is σ = 2941944969600. Its totient is φ = 391967170560.

The previous prime is 1143663645307. The next prime is 1143663645331. The reversal of 1143663645320 is 235463663411.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6566 + ... + 1512405.

It is an arithmetic number, because the mean of its divisors is an integer number (45967890150).

Almost surely, 2^{1143663645320} is an apocalyptic number.

1143663645320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1143663645320 is an abundant number, since it is smaller than the sum of its proper divisors (1798281324280).

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

1143663645320 is a wasteful number, since it uses less digits than its factorization.

1143663645320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521678 (or 1521674 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 44.

The spelling of 1143663645320 in words is "one trillion, one hundred forty-three billion, six hundred sixty-three million, six hundred forty-five thousand, three hundred twenty".