11043156534 has 32 divisors (see below), whose sum is σ = 22264986240. Its totient is φ = 3651316032.

The previous prime is 11043156469. The next prime is 11043156637. The reversal of 11043156534 is 43565134011.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11043156495 and 11043156504.

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, 1214497 + ... + 1223555.

It is an arithmetic number, because the mean of its divisors is an integer number (695780820).

Almost surely, 2^11043156534 is an apocalyptic number.

11043156534 is an abundant number, since it is smaller than the sum of its proper divisors (11221829706).

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

11043156534 is a wasteful number, since it uses less digits than its factorization.

11043156534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10684.

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 11043156534 in words is "eleven billion, forty-three million, one hundred fifty-six thousand, five hundred thirty-four".