545664620744 has 32 divisors (see below), whose sum is σ = 1067652498240. Its totient is φ = 260958350400.

The previous prime is 545664620741. The next prime is 545664620777. The reversal of 545664620744 is 447026466545.

It is a super-2 number, since 2×545664620744² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (545664620741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5175434 + ... + 5279814.

It is an arithmetic number, because the mean of its divisors is an integer number (33364140570).

Almost surely, 2^545664620744 is an apocalyptic number.

It is an amenable number.

545664620744 is a deficient number, since it is larger than the sum of its proper divisors (521987877496).

545664620744 is a wasteful number, since it uses less digits than its factorization.

545664620744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132821 (or 132817 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 53.

The spelling of 545664620744 in words is "five hundred forty-five billion, six hundred sixty-four million, six hundred twenty thousand, seven hundred forty-four".