54646320656 has 20 divisors (see below), whose sum is σ = 105882546000. Its totient is φ = 27321792672.

The previous prime is 54646320643. The next prime is 54646320671. The reversal of 54646320656 is 65602364645.

It is a happy number.

It is a super-2 number, since 2×54646320656² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 54646320656.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295655 + ... + 443513.

It is an arithmetic number, because the mean of its divisors is an integer number (5294127300).

Almost surely, 2^54646320656 is an apocalyptic number.

It is an amenable number.

54646320656 is a deficient number, since it is larger than the sum of its proper divisors (51236225344).

54646320656 is a wasteful number, since it uses less digits than its factorization.

54646320656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170966 (or 170960 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 47.

The spelling of 54646320656 in words is "fifty-four billion, six hundred forty-six million, three hundred twenty thousand, six hundred fifty-six".