1143660285276 has 48 divisors (see below), whose sum is σ = 2832039300384. Its totient is φ = 357966729216.

The previous prime is 1143660285253. The next prime is 1143660285283. The reversal of 1143660285276 is 6725820663411.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

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, 6385315 + ... + 6561978.

It is an arithmetic number, because the mean of its divisors is an integer number (59000818758).

Almost surely, 2^{1143660285276} is an apocalyptic number.

It is an amenable number.

1143660285276 is an abundant number, since it is smaller than the sum of its proper divisors (1688379015108).

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

1143660285276 is a wasteful number, since it uses less digits than its factorization.

1143660285276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12947750 (or 12947748 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 1143660285276 in words is "one trillion, one hundred forty-three billion, six hundred sixty million, two hundred eighty-five thousand, two hundred seventy-six".