1081667472543 has 48 divisors (see below), whose sum is σ = 1828404937216. Its totient is φ = 603301970880.

The previous prime is 1081667472533. The next prime is 1081667472547. The reversal of 1081667472543 is 3452747661801.

1081667472543 is a `hidden beast` number, since 1 + 0 + 8 + 166 + 7 + 472 + 5 + 4 + 3 = 666.

It is not a de Polignac number, because 1081667472543 - 2²⁰ = 1081666423967 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1081667472543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081667472547) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3781953 + ... + 4057893.

Almost surely, 2^{1081667472543} is an apocalyptic number.

1081667472543 is a deficient number, since it is larger than the sum of its proper divisors (746737464673).

1081667472543 is a wasteful number, since it uses less digits than its factorization.

1081667472543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277444 (or 277441 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The spelling of 1081667472543 in words is "one trillion, eighty-one billion, six hundred sixty-seven million, four hundred seventy-two thousand, five hundred forty-three".