547656797664 has 144 divisors (see below), whose sum is σ = 1615023158112. Its totient is φ = 175893617664.

The previous prime is 547656797663. The next prime is 547656797683. The reversal of 547656797664 is 466797656745.

547656797664 is a `hidden beast` number, since 5 + 476 + 5 + 6 + 7 + 97 + 6 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 547656797592 and 547656797601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (547656797663) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 848082 + ... + 1347054.

It is an arithmetic number, because the mean of its divisors is an integer number (11215438598).

Almost surely, 2^547656797664 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 547656797664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (807511579056).

547656797664 is an abundant number, since it is smaller than the sum of its proper divisors (1067366360448).

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

547656797664 is a wasteful number, since it uses less digits than its factorization.

547656797664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499129 (or 499118 counting only the distinct ones).

The product of its digits is 1600300800, while the sum is 72.

The spelling of 547656797664 in words is "five hundred forty-seven billion, six hundred fifty-six million, seven hundred ninety-seven thousand, six hundred sixty-four".