3666744061 has 2 divisors, whose sum is σ = 3666744062. Its totient is φ = 3666744060.

The previous prime is 3666743987. The next prime is 3666744101. The reversal of 3666744061 is 1604476663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2161692036 + 1505052025 = 46494^2 + 38795^2 .

It is a cyclic number.

It is not a de Polignac number, because 3666744061 - 2¹⁹ = 3666219773 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3666743999 and 3666744017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3666744761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1833372030 + 1833372031.

It is an arithmetic number, because the mean of its divisors is an integer number (1833372031).

Almost surely, 2^3666744061 is an apocalyptic number.

It is an amenable number.

3666744061 is a deficient number, since it is larger than the sum of its proper divisors (1).

3666744061 is an equidigital number, since it uses as much as digits as its factorization.

3666744061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 43.

The square root of 3666744061 is about 60553.6461412523. The cubic root of 3666744061 is about 1542.0325190821.

The spelling of 3666744061 in words is "three billion, six hundred sixty-six million, seven hundred forty-four thousand, sixty-one".