166060556 has 18 divisors (see below), whose sum is σ = 308708148. Its totient is φ = 78145600.

The previous prime is 166060553. The next prime is 166060579. The reversal of 166060556 is 655060661.

It is a super-2 number, since 2×166060556² = 55152216518058272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (166060553) 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 in 5 ways as a sum of consecutive naturals, for example, 70670 + ... + 72981.

Almost surely, 2^166060556 is an apocalyptic number.

It is an amenable number.

166060556 is a deficient number, since it is larger than the sum of its proper divisors (142647592).

166060556 is a wasteful number, since it uses less digits than its factorization.

166060556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143689 (or 143670 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 166060556 is about 12886.4485410062. The cubic root of 166060556 is about 549.6532867163.

It can be divided in two parts, 1660605 and 56, that added together give a palindrome (1660661).

The spelling of 166060556 in words is "one hundred sixty-six million, sixty thousand, five hundred fifty-six".