55666347356 has 24 divisors (see below), whose sum is σ = 101958751104. Its totient is φ = 26542589040.

The previous prime is 55666347329. The next prime is 55666347361. The reversal of 55666347356 is 65374366655.

It is a happy number.

It is a congruent number.

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, 883550 + ... + 944453.

It is an arithmetic number, because the mean of its divisors is an integer number (4248281296).

Almost surely, 2^55666347356 is an apocalyptic number.

It is an amenable number.

55666347356 is a deficient number, since it is larger than the sum of its proper divisors (46292403748).

55666347356 is a wasteful number, since it uses less digits than its factorization.

55666347356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828361 (or 1828359 counting only the distinct ones).

The product of its digits is 40824000, while the sum is 56.

The spelling of 55666347356 in words is "fifty-five billion, six hundred sixty-six million, three hundred forty-seven thousand, three hundred fifty-six".