151166666 has 12 divisors (see below), whose sum is σ = 263770578. Its totient is φ = 64785672.

The previous prime is 151166663. The next prime is 151166677. The reversal of 151166666 is 666661151.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 86025625 + 65141041 = 9275^2 + 8071^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (151166663) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 771161 + ... + 771356.

Almost surely, 2^151166666 is an apocalyptic number.

151166666 is a deficient number, since it is larger than the sum of its proper divisors (112603912).

151166666 is a wasteful number, since it uses less digits than its factorization.

151166666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542533 (or 1542526 counting only the distinct ones).

The product of its digits is 38880, while the sum is 38.

The square root of 151166666 is about 12294.9854005607. The cubic root of 151166666 is about 532.7032481788.

The spelling of 151166666 in words is "one hundred fifty-one million, one hundred sixty-six thousand, six hundred sixty-six".