434240164204661 has 4 divisors (see below), whose sum is σ = 435404346950892. Its totient is φ = 433075981458432.

The previous prime is 434240164204631. The next prime is 434240164204699. The reversal of 434240164204661 is 166402461042434.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 180466821234436 + 253773342970225 = 13433794^2 + 15930265^2 .

It is a cyclic number.

It is not a de Polignac number, because 434240164204661 - 2¹⁸ = 434240163942517 is a prime.

It is a super-3 number, since 3×434240164204661³ (a number of 45 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434240164204631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 582091372556 + ... + 582091373301.

It is an arithmetic number, because the mean of its divisors is an integer number (108851086737723).

Almost surely, 2^{434240164204661} is an apocalyptic number.

It is an amenable number.

434240164204661 is a deficient number, since it is larger than the sum of its proper divisors (1164182746231).

434240164204661 is a wasteful number, since it uses less digits than its factorization.

434240164204661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164182746230.

The product of its (nonzero) digits is 2654208, while the sum is 47.

The spelling of 434240164204661 in words is "four hundred thirty-four trillion, two hundred forty billion, one hundred sixty-four million, two hundred four thousand, six hundred sixty-one".