3666139696 has 20 divisors (see below), whose sum is σ = 7105431384. Its totient is φ = 1832480000.

The previous prime is 3666139621. The next prime is 3666139703. The reversal of 3666139696 is 6969316663.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16776 + ... + 87256.

Almost surely, 2^3666139696 is an apocalyptic number.

It is an amenable number.

3666139696 is a deficient number, since it is larger than the sum of its proper divisors (3439291688).

3666139696 is a wasteful number, since it uses less digits than its factorization.

3666139696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73740 (or 73734 counting only the distinct ones).

The product of its digits is 5668704, while the sum is 55.

The square root of 3666139696 is about 60548.6556085269. The cubic root of 3666139696 is about 1541.9477934440.

The spelling of 3666139696 in words is "three billion, six hundred sixty-six million, one hundred thirty-nine thousand, six hundred ninety-six".