666675552 has 96 divisors (see below), whose sum is σ = 1793207808. Its totient is φ = 216792576.

The previous prime is 666675551. The next prime is 666675557. The reversal of 666675552 is 255576666.

666675552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666675551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1439673 + ... + 1440135.

It is an arithmetic number, because the mean of its divisors is an integer number (18679248).

Almost surely, 2^666675552 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 666675552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (896603904).

666675552 is an abundant number, since it is smaller than the sum of its proper divisors (1126532256).

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

666675552 is a wasteful number, since it uses less digits than its factorization.

666675552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812 (or 804 counting only the distinct ones).

The product of its digits is 2268000, while the sum is 48.

The square root of 666675552 is about 25820.0610378829. The cubic root of 666675552 is about 873.5843457459.

The spelling of 666675552 in words is "six hundred sixty-six million, six hundred seventy-five thousand, five hundred fifty-two".