3546660401 has 2 divisors, whose sum is σ = 3546660402. Its totient is φ = 3546660400.

The previous prime is 3546660389. The next prime is 3546660487. The reversal of 3546660401 is 1040666453.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2613663376 + 932997025 = 51124^2 + 30545^2 .

It is an emirp because it is prime and its reverse (1040666453) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3546660401 - 2¹⁸ = 3546398257 is a prime.

It is not a weakly prime, because it can be changed into another prime (3546660701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1773330200 + 1773330201.

It is an arithmetic number, because the mean of its divisors is an integer number (1773330201).

Almost surely, 2^3546660401 is an apocalyptic number.

It is an amenable number.

3546660401 is a deficient number, since it is larger than the sum of its proper divisors (1).

3546660401 is an equidigital number, since it uses as much as digits as its factorization.

3546660401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 3546660401 is about 59553.8445526399. The cubic root of 3546660401 is about 1525.0117925810.

The spelling of 3546660401 in words is "three billion, five hundred forty-six million, six hundred sixty thousand, four hundred one".