665546048 has 56 divisors (see below), whose sum is σ = 1349654400. Its totient is φ = 325552640.

The previous prime is 665546033. The next prime is 665546053. The reversal of 665546048 is 840645566.

665546048 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 676565 + ... + 677547.

Almost surely, 2^665546048 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 665546048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (674827200).

665546048 is an abundant number, since it is smaller than the sum of its proper divisors (684108352).

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

665546048 is a wasteful number, since it uses less digits than its factorization.

665546048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215 (or 1205 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 44.

The square root of 665546048 is about 25798.1791605532. The cubic root of 665546048 is about 873.0907149345.

The spelling of 665546048 in words is "six hundred sixty-five million, five hundred forty-six thousand, forty-eight".