546641691840 has 672 divisors, whose sum is σ = 2090511521280. Its totient is φ = 130478211072.

The previous prime is 546641691787. The next prime is 546641691851. The reversal of 546641691840 is 48196146645.

546641691840 is a `hidden beast` number, since 5 + 4 + 66 + 416 + 91 + 84 + 0 = 666.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 104457864 + ... + 104463096.

It is an arithmetic number, because the mean of its divisors is an integer number (3110880240).

Almost surely, 2^546641691840 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 546641691840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1045255760640).

546641691840 is an abundant number, since it is smaller than the sum of its proper divisors (1543869829440).

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

546641691840 is a wasteful number, since it uses less digits than its factorization.

546641691840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5381 (or 5368 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 546641691840 in words is "five hundred forty-six billion, six hundred forty-one million, six hundred ninety-one thousand, eight hundred forty".