667474670678 has 8 divisors (see below), whose sum is σ = 1001513676720. Its totient is φ = 333636778440.

The previous prime is 667474670663. The next prime is 667474670693. The reversal of 667474670678 is 876076474766.

667474670678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (667474670663) and next prime (667474670693).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×667474670678³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50270153 + ... + 50283428.

It is an arithmetic number, because the mean of its divisors is an integer number (125189209590).

Almost surely, 2^667474670678 is an apocalyptic number.

667474670678 is a deficient number, since it is larger than the sum of its proper divisors (334039006042).

667474670678 is a wasteful number, since it uses less digits than its factorization.

667474670678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100556902.

The product of its (nonzero) digits is 398297088, while the sum is 68.

The spelling of 667474670678 in words is "six hundred sixty-seven billion, four hundred seventy-four million, six hundred seventy thousand, six hundred seventy-eight".