1666834934 has 16 divisors (see below), whose sum is σ = 2516754240. Its totient is φ = 827933760.

The previous prime is 1666834891. The next prime is 1666834993. The reversal of 1666834934 is 4394386661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210947 + ... + 218705.

It is an arithmetic number, because the mean of its divisors is an integer number (157297140).

Almost surely, 2^1666834934 is an apocalyptic number.

1666834934 is a deficient number, since it is larger than the sum of its proper divisors (849919306).

1666834934 is a wasteful number, since it uses less digits than its factorization.

1666834934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8455.

The product of its digits is 2239488, while the sum is 50.

The square root of 1666834934 is about 40826.8898399082. The cubic root of 1666834934 is about 1185.6710007507.

The spelling of 1666834934 in words is "one billion, six hundred sixty-six million, eight hundred thirty-four thousand, nine hundred thirty-four".