1666669014 has 16 divisors (see below), whose sum is σ = 3703709040. Its totient is φ = 555556320.

The previous prime is 1666669013. The next prime is 1666669051. The reversal of 1666669014 is 4109666661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1666669013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15432067 + ... + 15432174.

It is an arithmetic number, because the mean of its divisors is an integer number (231481815).

Almost surely, 2^1666669014 is an apocalyptic number.

1666669014 is an abundant number, since it is smaller than the sum of its proper divisors (2037040026).

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

1666669014 is a wasteful number, since it uses less digits than its factorization.

1666669014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30864252 (or 30864246 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 1666669014 is about 40824.8577952208. The cubic root of 1666669014 is about 1185.6316581107.

The spelling of 1666669014 in words is "one billion, six hundred sixty-six million, six hundred sixty-nine thousand, fourteen".