3666172707 has 12 divisors (see below), whose sum is σ = 5296149040. Its totient is φ = 2443853808.

The previous prime is 3666172693. The next prime is 3666172709. The reversal of 3666172707 is 7072716663.

3666172707 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3666172707 - 2¹⁰ = 3666171683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3666172709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107394 + ... + 137352.

Almost surely, 2^3666172707 is an apocalyptic number.

3666172707 is a deficient number, since it is larger than the sum of its proper divisors (1629976333).

3666172707 is a wasteful number, since it uses less digits than its factorization.

3666172707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43562 (or 43559 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 45.

The square root of 3666172707 is about 60548.9282068642. The cubic root of 3666172707 is about 1541.9524214806.

The spelling of 3666172707 in words is "three billion, six hundred sixty-six million, one hundred seventy-two thousand, seven hundred seven".