12555767043 has 16 divisors (see below), whose sum is σ = 18606873600. Its totient is φ = 8367929640.

The previous prime is 12555767041. The next prime is 12555767071. The reversal of 12555767043 is 34076755521.

It is a happy number.

12555767043 is a `hidden beast` number, since 1 + 2 + 5 + 5 + 576 + 70 + 4 + 3 = 666.

It is not a de Polignac number, because 12555767043 - 2¹ = 12555767041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12555767043.

It is not an unprimeable number, because it can be changed into a prime (12555767041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19558 + ... + 159668.

It is an arithmetic number, because the mean of its divisors is an integer number (1162929600).

Almost surely, 2^12555767043 is an apocalyptic number.

12555767043 is a deficient number, since it is larger than the sum of its proper divisors (6051106557).

12555767043 is a wasteful number, since it uses less digits than its factorization.

12555767043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143439 (or 143433 counting only the distinct ones).

The product of its (nonzero) digits is 882000, while the sum is 45.

The spelling of 12555767043 in words is "twelve billion, five hundred fifty-five million, seven hundred sixty-seven thousand, forty-three".