55666334536 has 32 divisors (see below), whose sum is σ = 107235173880. Its totient is φ = 27070848000.

The previous prime is 55666334473. The next prime is 55666334561. The reversal of 55666334536 is 63543366655.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 55502648100 + 163686436 = 235590^2 + 12794^2 .

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, 795526 + ... + 862666.

Almost surely, 2^55666334536 is an apocalyptic number.

It is an amenable number.

55666334536 is a deficient number, since it is larger than the sum of its proper divisors (51568839344).

55666334536 is a wasteful number, since it uses less digits than its factorization.

55666334536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69985 (or 69981 counting only the distinct ones).

The product of its digits is 17496000, while the sum is 52.

The spelling of 55666334536 in words is "fifty-five billion, six hundred sixty-six million, three hundred thirty-four thousand, five hundred thirty-six".