675666900 has 144 divisors (see below), whose sum is σ = 2182985280. Its totient is φ = 179280000.

The previous prime is 675666799. The next prime is 675666931. The reversal of 675666900 is 9666576.

675666900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×675666900² = 913051519511220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 677202 + ... + 678198.

It is an arithmetic number, because the mean of its divisors is an integer number (15159620).

Almost surely, 2^675666900 is an apocalyptic number.

675666900 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 675666900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1091492640).

675666900 is an abundant number, since it is smaller than the sum of its proper divisors (1507318380).

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

675666900 is a wasteful number, since it uses less digits than its factorization.

675666900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271 (or 1258 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The square root of 675666900 is about 25993.5934414617. The cubic root of 675666900 is about 877.4941193265.

The spelling of 675666900 in words is "six hundred seventy-five million, six hundred sixty-six thousand, nine hundred".