3666434194 has 4 divisors (see below), whose sum is σ = 5499651294. Its totient is φ = 1833217096.

The previous prime is 3666434059. The next prime is 3666434197. The reversal of 3666434194 is 4914346663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4914346663 = 6781 ⋅724723.

It can be written as a sum of positive squares in only one way, i.e., 3229080625 + 437353569 = 56825^2 + 20913^2 .

It is not an unprimeable number, because it can be changed into a prime (3666434197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 916608547 + ... + 916608550.

Almost surely, 2^3666434194 is an apocalyptic number.

3666434194 is a deficient number, since it is larger than the sum of its proper divisors (1833217100).

3666434194 is a wasteful number, since it uses less digits than its factorization.

3666434194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833217099.

The product of its digits is 1119744, while the sum is 46.

The square root of 3666434194 is about 60551.0874716549. The cubic root of 3666434194 is about 1541.9890801398.

The spelling of 3666434194 in words is "three billion, six hundred sixty-six million, four hundred thirty-four thousand, one hundred ninety-four".