678566160 has 100 divisors (see below), whose sum is σ = 2356783308. Its totient is φ = 180949248.

The previous prime is 678566153. The next prime is 678566179. The reversal of 678566160 is 61665876.

678566160 is a `hidden beast` number, since 6 + 78 + 566 + 16 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 136048896 + 542517264 = 11664^2 + 23292^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 45879 + ... + 58838.

Almost surely, 2^678566160 is an apocalyptic number.

678566160 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

678566160 is an abundant number, since it is smaller than the sum of its proper divisors (1678217148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

678566160 is a wasteful number, since it uses less digits than its factorization.

678566160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104742 (or 104727 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 678566160 is about 26049.3024858632. The cubic root of 678566160 is about 878.7474259465.

The spelling of 678566160 in words is "six hundred seventy-eight million, five hundred sixty-six thousand, one hundred sixty".