546978663 has 192 divisors, whose sum is σ = 1127153664. Its totient is φ = 256608000.

The previous prime is 546978569. The next prime is 546978673. The reversal of 546978663 is 366879645.

546978663 is a `hidden beast` number, since 546 + 97 + 8 + 6 + 6 + 3 = 666.

546978663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 546978663 - 2¹⁷ = 546847591 is a prime.

Its product of digits (6531840) is a multiple of the sum of its prime factors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (546978673) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 13340923 + ... + 13340963.

It is an arithmetic number, because the mean of its divisors is an integer number (5870592).

Almost surely, 2^546978663 is an apocalyptic number.

546978663 is an abundant number, since it is smaller than the sum of its proper divisors (580175001).

546978663 is a wasteful number, since it uses less digits than its factorization.

546978663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 116 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The square root of 546978663 is about 23387.5749704838. The cubic root of 546978663 is about 817.8182449184.

The spelling of 546978663 in words is "five hundred forty-six million, nine hundred seventy-eight thousand, six hundred sixty-three".