3661601413 has 2 divisors, whose sum is σ = 3661601414. Its totient is φ = 3661601412.

The previous prime is 3661601387. The next prime is 3661601429. The reversal of 3661601413 is 3141061663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3561941124 + 99660289 = 59682^2 + 9983^2 .

It is a cyclic number.

It is not a de Polignac number, because 3661601413 - 2¹⁷ = 3661470341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3661601453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1830800706 + 1830800707.

It is an arithmetic number, because the mean of its divisors is an integer number (1830800707).

Almost surely, 2^3661601413 is an apocalyptic number.

It is an amenable number.

3661601413 is a deficient number, since it is larger than the sum of its proper divisors (1).

3661601413 is an equidigital number, since it uses as much as digits as its factorization.

3661601413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 3661601413 is about 60511.1676717612. The cubic root of 3661601413 is about 1541.3112760597.

The spelling of 3661601413 in words is "three billion, six hundred sixty-one million, six hundred one thousand, four hundred thirteen".