545355664 has 80 divisors (see below), whose sum is σ = 1241634816. Its totient is φ = 227203200.

The previous prime is 545355659. The next prime is 545355673. The reversal of 545355664 is 466553545.

It is a self number, because there is not a number n which added to its sum of digits gives 545355664.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1110459 + ... + 1110949.

Almost surely, 2^545355664 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 545355664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (620817408).

545355664 is an abundant number, since it is smaller than the sum of its proper divisors (696279152).

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

545355664 is a wasteful number, since it uses less digits than its factorization.

545355664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764 (or 758 counting only the distinct ones).

The product of its digits is 1080000, while the sum is 43.

The square root of 545355664 is about 23352.8513034276. The cubic root of 545355664 is about 817.0085648454.

The spelling of 545355664 in words is "five hundred forty-five million, three hundred fifty-five thousand, six hundred sixty-four".