546437664 has 120 divisors (see below), whose sum is σ = 1701728028. Its totient is φ = 171417600.

The previous prime is 546437659. The next prime is 546437669. The reversal of 546437664 is 466734645.

It is a happy number.

546437664 is a `hidden beast` number, since 546 + 43 + 7 + 6 + 64 = 666.

It is an interprime number because it is at equal distance from previous prime (546437659) and next prime (546437669).

It can be written as a sum of positive squares in 2 ways, for example, as 542517264 + 3920400 = 23292^2 + 1980^2 .

It is not an unprimeable number, because it can be changed into a prime (546437669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 37864 + ... + 50264.

Almost surely, 2^546437664 is an apocalyptic number.

546437664 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 546437664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (850864014).

546437664 is an abundant number, since it is smaller than the sum of its proper divisors (1155290364).

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

546437664 is a wasteful number, since it uses less digits than its factorization.

546437664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12440 (or 12423 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 45.

The square root of 546437664 is about 23376.0061601635. The cubic root of 546437664 is about 817.5485300708.

The spelling of 546437664 in words is "five hundred forty-six million, four hundred thirty-seven thousand, six hundred sixty-four".