64555546382366 has 48 divisors (see below), whose sum is σ = 110104635471264. Its totient is φ = 28215124072128.

The previous prime is 64555546382333. The next prime is 64555546382417. The reversal of 64555546382366 is 66328364555546.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 64555546382296 and 64555546382305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21462551 + ... + 24284813.

It is an arithmetic number, because the mean of its divisors is an integer number (2293846572318).

Almost surely, 2^{64555546382366} is an apocalyptic number.

64555546382366 is a deficient number, since it is larger than the sum of its proper divisors (45549089088898).

64555546382366 is a wasteful number, since it uses less digits than its factorization.

64555546382366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2824753 (or 2824734 counting only the distinct ones).

The product of its digits is 1866240000, while the sum is 68.

The spelling of 64555546382366 in words is "sixty-four trillion, five hundred fifty-five billion, five hundred forty-six million, three hundred eighty-two thousand, three hundred sixty-six".