7341664661 has 2 divisors, whose sum is σ = 7341664662. Its totient is φ = 7341664660.

The previous prime is 7341664643. The next prime is 7341664697. The reversal of 7341664661 is 1664661437.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6701878225 + 639786436 = 81865^2 + 25294^2 .

It is a cyclic number.

It is not a de Polignac number, because 7341664661 - 2¹⁸ = 7341402517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7341664361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3670832330 + 3670832331.

It is an arithmetic number, because the mean of its divisors is an integer number (3670832331).

Almost surely, 2^7341664661 is an apocalyptic number.

It is an amenable number.

7341664661 is a deficient number, since it is larger than the sum of its proper divisors (1).

7341664661 is an equidigital number, since it uses as much as digits as its factorization.

7341664661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 44.

The square root of 7341664661 is about 85683.5145229233. The cubic root of 7341664661 is about 1943.5610242888.

The spelling of 7341664661 in words is "seven billion, three hundred forty-one million, six hundred sixty-four thousand, six hundred sixty-one".