3666643124 has 12 divisors (see below), whose sum is σ = 6504524964. Its totient is φ = 1808207424.

The previous prime is 3666643121. The next prime is 3666643129. The reversal of 3666643124 is 4213466663.

It can be written as a sum of positive squares in 2 ways, for example, as 1133534224 + 2533108900 = 33668^2 + 50330^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3666643121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6278207 + ... + 6278790.

It is an arithmetic number, because the mean of its divisors is an integer number (542043747).

Almost surely, 2^3666643124 is an apocalyptic number.

It is an amenable number.

3666643124 is a deficient number, since it is larger than the sum of its proper divisors (2837881840).

3666643124 is a wasteful number, since it uses less digits than its factorization.

3666643124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12557074 (or 12557072 counting only the distinct ones).

The product of its digits is 373248, while the sum is 41.

The square root of 3666643124 is about 60552.8126844658. The cubic root of 3666643124 is about 1542.0183694203.

The spelling of 3666643124 in words is "three billion, six hundred sixty-six million, six hundred forty-three thousand, one hundred twenty-four".