1040643843120 has 160 divisors (see below), whose sum is σ = 4096502807040. Its totient is φ = 237861446400.

The previous prime is 1040643843097. The next prime is 1040643843131. The reversal of 1040643843120 is 213483460401.

1040643843120 is a `hidden beast` number, since 1 + 0 + 4 + 0 + 643 + 8 + 4 + 3 + 1 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34397706 + ... + 34427945.

It is an arithmetic number, because the mean of its divisors is an integer number (25603142544).

Almost surely, 2^{1040643843120} is an apocalyptic number.

1040643843120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1040643843120 is an abundant number, since it is smaller than the sum of its proper divisors (3055858963920).

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

1040643843120 is a wasteful number, since it uses less digits than its factorization.

1040643843120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68825680 (or 68825668 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The spelling of 1040643843120 in words is "one trillion, forty billion, six hundred forty-three million, eight hundred forty-three thousand, one hundred twenty".