166616662 has 12 divisors (see below), whose sum is σ = 263772396. Its totient is φ = 78923340.

The previous prime is 166616657. The next prime is 166616663. The reversal of 166616662 is 266616661.

It is a super-2 number, since 2×166616662² = 55522224112044488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166616663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 114664 + ... + 116107.

It is an arithmetic number, because the mean of its divisors is an integer number (21981033).

Almost surely, 2^166616662 is an apocalyptic number.

166616662 is a deficient number, since it is larger than the sum of its proper divisors (97155734).

166616662 is a wasteful number, since it uses less digits than its factorization.

166616662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230811 (or 230792 counting only the distinct ones).

The product of its digits is 93312, while the sum is 40.

The square root of 166616662 is about 12908.0076696599. The cubic root of 166616662 is about 550.2661653868.

Subtracting 166616662 from its reverse (266616661), we obtain a palindrome (99999999).

The spelling of 166616662 in words is "one hundred sixty-six million, six hundred sixteen thousand, six hundred sixty-two".