55643575656466 has 16 divisors (see below), whose sum is σ = 98678262248640. Its totient is φ = 23024927857680.

The previous prime is 55643575656413. The next prime is 55643575656469. The reversal of 55643575656466 is 66465657534655.

It is not an unprimeable number, because it can be changed into a prime (55643575656469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68526570600 + ... + 68526571411.

It is an arithmetic number, because the mean of its divisors is an integer number (6167391390540).

Almost surely, 2^{55643575656466} is an apocalyptic number.

55643575656466 is a deficient number, since it is larger than the sum of its proper divisors (43034686592174).

55643575656466 is a wasteful number, since it uses less digits than its factorization.

55643575656466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137053142049.

The product of its digits is 8164800000, while the sum is 73.

The spelling of 55643575656466 in words is "fifty-five trillion, six hundred forty-three billion, five hundred seventy-five million, six hundred fifty-six thousand, four hundred sixty-six".