7405665197201 has 2 divisors, whose sum is σ = 7405665197202. Its totient is φ = 7405665197200.

The previous prime is 7405665197167. The next prime is 7405665197221. The reversal of 7405665197201 is 1027915665047.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5374983196801 + 2030682000400 = 2318401^2 + 1425020^2 .

It is a cyclic number.

It is not a de Polignac number, because 7405665197201 - 2⁶ = 7405665197137 is a prime.

It is not a weakly prime, because it can be changed into another prime (7405665197221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3702832598600 + 3702832598601.

It is an arithmetic number, because the mean of its divisors is an integer number (3702832598601).

Almost surely, 2^{7405665197201} is an apocalyptic number.

It is an amenable number.

7405665197201 is a deficient number, since it is larger than the sum of its proper divisors (1).

7405665197201 is an equidigital number, since it uses as much as digits as its factorization.

7405665197201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3175200, while the sum is 53.

The spelling of 7405665197201 in words is "seven trillion, four hundred five billion, six hundred sixty-five million, one hundred ninety-seven thousand, two hundred one".