54644816456 has 16 divisors (see below), whose sum is σ = 108486032940. Its totient is φ = 25715207680.

The previous prime is 54644816453. The next prime is 54644816461. The reversal of 54644816456 is 65461844645.

It can be written as a sum of positive squares in 2 ways, for example, as 52746471556 + 1898344900 = 229666^2 + 43570^2 .

It is a junction number, because it is equal to n+sod(n) for n = 54644816398 and 54644816407.

It is not an unprimeable number, because it can be changed into a prime (54644816453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200899925 + ... + 200900196.

Almost surely, 2^54644816456 is an apocalyptic number.

It is an amenable number.

54644816456 is a deficient number, since it is larger than the sum of its proper divisors (53841216484).

54644816456 is a wasteful number, since it uses less digits than its factorization.

54644816456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401800144 (or 401800140 counting only the distinct ones).

The product of its digits is 11059200, while the sum is 53.

The spelling of 54644816456 in words is "fifty-four billion, six hundred forty-four million, eight hundred sixteen thousand, four hundred fifty-six".