545446656 has 288 divisors, whose sum is σ = 1742469120. Its totient is φ = 167878656.

The previous prime is 545446639. The next prime is 545446667. The reversal of 545446656 is 656644545.

545446656 is a `hidden beast` number, since 54 + 544 + 6 + 6 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7471836 + ... + 7471908.

It is an arithmetic number, because the mean of its divisors is an integer number (6050240).

Almost surely, 2^545446656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545446656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (871234560).

545446656 is an abundant number, since it is smaller than the sum of its proper divisors (1197022464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545446656 is a wasteful number, since it uses less digits than its factorization.

545446656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 148 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 45.

The square root of 545446656 is about 23354.7994211040. The cubic root of 545446656 is about 817.0540013156.

The spelling of 545446656 in words is "five hundred forty-five million, four hundred forty-six thousand, six hundred fifty-six".