340661165461 has 4 divisors (see below), whose sum is σ = 340684202572. Its totient is φ = 340638128352.

The previous prime is 340661165357. The next prime is 340661165501. The reversal of 340661165461 is 164561166043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 164561166043 = 29 ⋅5674522967.

It can be written as a sum of positive squares in 2 ways, for example, as 259290750436 + 81370415025 = 509206^2 + 285255^2 .

It is a cyclic number.

It is not a de Polignac number, because 340661165461 - 2³¹ = 338513681813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340661165561) 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, 11496360 + ... + 11525953.

It is an arithmetic number, because the mean of its divisors is an integer number (85171050643).

Almost surely, 2^340661165461 is an apocalyptic number.

It is an amenable number.

340661165461 is a deficient number, since it is larger than the sum of its proper divisors (23037111).

340661165461 is a wasteful number, since it uses less digits than its factorization.

340661165461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23037110.

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 340661165461 in words is "three hundred forty billion, six hundred sixty-one million, one hundred sixty-five thousand, four hundred sixty-one".