670778168038 has 16 divisors (see below), whose sum is σ = 1098263213136. Its totient is φ = 304725219840.

The previous prime is 670778168009. The next prime is 670778168059. The reversal of 670778168038 is 830861877076.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8657931 + ... + 8735062.

It is an arithmetic number, because the mean of its divisors is an integer number (68641450821).

Almost surely, 2^670778168038 is an apocalyptic number.

670778168038 is a deficient number, since it is larger than the sum of its proper divisors (427485045098).

670778168038 is a wasteful number, since it uses less digits than its factorization.

670778168038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17394759.

The product of its (nonzero) digits is 18966528, while the sum is 61.

The spelling of 670778168038 in words is "six hundred seventy billion, seven hundred seventy-eight million, one hundred sixty-eight thousand, thirty-eight".