100664878178 has 8 divisors (see below), whose sum is σ = 152408507472. Its totient is φ = 49862042356.

The previous prime is 100664878129. The next prime is 100664878187. The reversal of 100664878178 is 871878466001.

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

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, 235198100 + ... + 235198527.

It is an arithmetic number, because the mean of its divisors is an integer number (19051063434).

Almost surely, 2^100664878178 is an apocalyptic number.

100664878178 is a deficient number, since it is larger than the sum of its proper divisors (51743629294).

100664878178 is a wasteful number, since it uses less digits than its factorization.

100664878178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470396736.

The product of its (nonzero) digits is 3612672, while the sum is 56.

The spelling of 100664878178 in words is "one hundred billion, six hundred sixty-four million, eight hundred seventy-eight thousand, one hundred seventy-eight".