55684020686 has 16 divisors (see below), whose sum is σ = 97786573920. Its totient is φ = 23282517120.

The previous prime is 55684020677. The next prime is 55684020701. The reversal of 55684020686 is 68602048655.

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, 48504671 + ... + 48505818.

It is an arithmetic number, because the mean of its divisors is an integer number (6111660870).

Almost surely, 2^55684020686 is an apocalyptic number.

55684020686 is a deficient number, since it is larger than the sum of its proper divisors (42102553234).

55684020686 is a wasteful number, since it uses less digits than its factorization.

55684020686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97010539.

The product of its (nonzero) digits is 2764800, while the sum is 50.

The spelling of 55684020686 in words is "fifty-five billion, six hundred eighty-four million, twenty thousand, six hundred eighty-six".