1040155512543 has 24 divisors (see below), whose sum is σ = 1776291847200. Its totient is φ = 573878902464.

The previous prime is 1040155512533. The next prime is 1040155512547. The reversal of 1040155512543 is 3452155510401.

1040155512543 is a `hidden beast` number, since 1 + 0 + 40 + 1 + 5 + 551 + 25 + 43 = 666.

It is not a de Polignac number, because 1040155512543 - 2⁸ = 1040155512287 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1040155512498 and 1040155512507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040155512547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 284660328 + ... + 284663981.

It is an arithmetic number, because the mean of its divisors is an integer number (74012160300).

Almost surely, 2^{1040155512543} is an apocalyptic number.

1040155512543 is a deficient number, since it is larger than the sum of its proper divisors (736136334657).

1040155512543 is a wasteful number, since it uses less digits than its factorization.

1040155512543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569324351 (or 569324348 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The spelling of 1040155512543 in words is "one trillion, forty billion, one hundred fifty-five million, five hundred twelve thousand, five hundred forty-three".