160711978 has 16 divisors (see below), whose sum is σ = 276202944. Its totient is φ = 68702400.

The previous prime is 160711973. The next prime is 160711981. The reversal of 160711978 is 879117061.

It is a self number, because there is not a number n which added to its sum of digits gives 160711978.

It is not an unprimeable number, because it can be changed into a prime (160711973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8700 + ... + 19927.

It is an arithmetic number, because the mean of its divisors is an integer number (17262684).

Almost surely, 2^160711978 is an apocalyptic number.

160711978 is a deficient number, since it is larger than the sum of its proper divisors (115490966).

160711978 is a wasteful number, since it uses less digits than its factorization.

160711978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29037.

The product of its (nonzero) digits is 21168, while the sum is 40.

The square root of 160711978 is about 12677.2228031221. Note that the first 3 decimals coincide. The cubic root of 160711978 is about 543.6875841864.

The spelling of 160711978 in words is "one hundred sixty million, seven hundred eleven thousand, nine hundred seventy-eight".