545945664 has 112 divisors (see below), whose sum is σ = 1644456960. Its totient is φ = 158231040.

The previous prime is 545945651. The next prime is 545945683. The reversal of 545945664 is 466549545.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42957 + ... + 54195.

Almost surely, 2^545945664 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 545945664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (822228480).

545945664 is an abundant number, since it is smaller than the sum of its proper divisors (1098511296).

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

545945664 is a wasteful number, since it uses less digits than its factorization.

545945664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11288 (or 11278 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 48.

The square root of 545945664 is about 23365.4801791018. The cubic root of 545945664 is about 817.3030890477.

The spelling of 545945664 in words is "five hundred forty-five million, nine hundred forty-five thousand, six hundred sixty-four".