546721125656 has 8 divisors (see below), whose sum is σ = 1025102110620. Its totient is φ = 273360562824.

The previous prime is 546721125647. The next prime is 546721125659. The reversal of 546721125656 is 656521127645.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (546721125659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34170070346 + ... + 34170070361.

Almost surely, 2^546721125656 is an apocalyptic number.

It is an amenable number.

546721125656 is a deficient number, since it is larger than the sum of its proper divisors (478380984964).

546721125656 is a wasteful number, since it uses less digits than its factorization.

546721125656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68340140713 (or 68340140709 counting only the distinct ones).

The product of its digits is 3024000, while the sum is 50.

The spelling of 546721125656 in words is "five hundred forty-six billion, seven hundred twenty-one million, one hundred twenty-five thousand, six hundred fifty-six".