1666115046 has 24 divisors (see below), whose sum is σ = 3623247264. Its totient is φ = 553320720.

The previous prime is 1666115029. The next prime is 1666115117. The reversal of 1666115046 is 6405116661.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1666115046.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165901 + ... + 175656.

It is an arithmetic number, because the mean of its divisors is an integer number (150968636).

Almost surely, 2^1666115046 is an apocalyptic number.

1666115046 is an abundant number, since it is smaller than the sum of its proper divisors (1957132218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1666115046 is a wasteful number, since it uses less digits than its factorization.

1666115046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341836 (or 341833 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 1666115046 is about 40818.0725414613. The cubic root of 1666115046 is about 1185.5002833395.

The spelling of 1666115046 in words is "one billion, six hundred sixty-six million, one hundred fifteen thousand, forty-six".