668071675 has 6 divisors (see below), whose sum is σ = 828408908. Its totient is φ = 534457320.

The previous prime is 668071633. The next prime is 668071697. The reversal of 668071675 is 576170866.

It is not a de Polignac number, because 668071675 - 2¹¹ = 668069627 is a prime.

It is a super-3 number, since 3×668071675³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13361409 + ... + 13361458.

Almost surely, 2^668071675 is an apocalyptic number.

668071675 is a deficient number, since it is larger than the sum of its proper divisors (160337233).

668071675 is a wasteful number, since it uses less digits than its factorization.

668071675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26722877 (or 26722872 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 668071675 is about 25847.0825239523. The cubic root of 668071675 is about 874.1937280342.

It can be divided in two parts, 668071 and 675, that added together give a triangular number (668746 = T₁₁₅₆).

The spelling of 668071675 in words is "six hundred sixty-eight million, seventy-one thousand, six hundred seventy-five".