543661612 has 24 divisors (see below), whose sum is σ = 1025247776. Its totient is φ = 250760448.

The previous prime is 543661607. The next prime is 543661631. The reversal of 543661612 is 216166345.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128068 + ... + 132244.

Almost surely, 2^543661612 is an apocalyptic number.

543661612 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

543661612 is a deficient number, since it is larger than the sum of its proper divisors (481586164).

543661612 is a wasteful number, since it uses less digits than its factorization.

543661612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6697 (or 6695 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The square root of 543661612 is about 23316.5523180422. The cubic root of 543661612 is about 816.1617226399.

The spelling of 543661612 in words is "five hundred forty-three million, six hundred sixty-one thousand, six hundred twelve".