166160656 has 10 divisors (see below), whose sum is σ = 321936302. Its totient is φ = 83080320.

The previous prime is 166160653. The next prime is 166160677. The reversal of 166160656 is 656061661.

It can be written as a sum of positive squares in only one way, i.e., 165894400 + 266256 = 12880^2 + 516^2 .

It is not an unprimeable number, because it can be changed into a prime (166160653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5192505 + ... + 5192536.

Almost surely, 2^166160656 is an apocalyptic number.

166160656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

166160656 is a deficient number, since it is larger than the sum of its proper divisors (155775646).

166160656 is a wasteful number, since it uses less digits than its factorization.

166160656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10385049 (or 10385043 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 166160656 is about 12890.3318809098. The cubic root of 166160656 is about 549.7637067617.

The spelling of 166160656 in words is "one hundred sixty-six million, one hundred sixty thousand, six hundred fifty-six".