668832070 has 16 divisors (see below), whose sum is σ = 1220855328. Its totient is φ = 263764480.

The previous prime is 668832061. The next prime is 668832077. The reversal of 668832070 is 70238866.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668832077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 470299 + ... + 471718.

It is an arithmetic number, because the mean of its divisors is an integer number (76303458).

Almost surely, 2^668832070 is an apocalyptic number.

668832070 is a deficient number, since it is larger than the sum of its proper divisors (552023258).

668832070 is a wasteful number, since it uses less digits than its factorization.

668832070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942095.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 668832070 is about 25861.7878345640. The cubic root of 668832070 is about 874.5252695568.

The spelling of 668832070 in words is "six hundred sixty-eight million, eight hundred thirty-two thousand, seventy".