945351666 has 24 divisors (see below), whose sum is σ = 2340871104. Its totient is φ = 270100440.

The previous prime is 945351653. The next prime is 945351677. The reversal of 945351666 is 666153549.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3751270 + ... + 3751521.

It is an arithmetic number, because the mean of its divisors is an integer number (97536296).

Almost surely, 2^945351666 is an apocalyptic number.

945351666 is an abundant number, since it is smaller than the sum of its proper divisors (1395519438).

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

945351666 is a wasteful number, since it uses less digits than its factorization.

945351666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7502806 (or 7502803 counting only the distinct ones).

The product of its digits is 583200, while the sum is 45.

The square root of 945351666 is about 30746.5716137588. The cubic root of 945351666 is about 981.4416052411.

The spelling of 945351666 in words is "nine hundred forty-five million, three hundred fifty-one thousand, six hundred sixty-six".