60166561666 has 4 divisors (see below), whose sum is σ = 90249842502. Its totient is φ = 30083280832.

The previous prime is 60166561627. The next prime is 60166561673. The reversal of 60166561666 is 66616566106.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 54980401441 + 5186160225 = 234479^2 + 72015^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15041640415 + ... + 15041640418.

Almost surely, 2^60166561666 is an apocalyptic number.

60166561666 is a deficient number, since it is larger than the sum of its proper divisors (30083280836).

60166561666 is a wasteful number, since it uses less digits than its factorization.

60166561666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30083280835.

The product of its (nonzero) digits is 1399680, while the sum is 49.

The spelling of 60166561666 in words is "sixty billion, one hundred sixty-six million, five hundred sixty-one thousand, six hundred sixty-six".