668147050 has 24 divisors (see below), whose sum is σ = 1243509696. Its totient is φ = 267096240.

The previous prime is 668147047. The next prime is 668147057. The reversal of 668147050 is 50741866.

It is not an unprimeable number, because it can be changed into a prime (668147057) by changing a digit.

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, 111429 + ... + 117271.

It is an arithmetic number, because the mean of its divisors is an integer number (51812904).

Almost surely, 2^668147050 is an apocalyptic number.

668147050 is a deficient number, since it is larger than the sum of its proper divisors (575362646).

668147050 is a wasteful number, since it uses less digits than its factorization.

668147050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8142 (or 8137 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 668147050 is about 25848.5405777580. The cubic root of 668147050 is about 874.2266036855.

The spelling of 668147050 in words is "six hundred sixty-eight million, one hundred forty-seven thousand, fifty".