344205641661 has 16 divisors (see below), whose sum is σ = 528633790464. Its totient is φ = 195140204784.

The previous prime is 344205641651. The next prime is 344205641671. The reversal of 344205641661 is 166146502443.

It is an interprime number because it is at equal distance from previous prime (344205641651) and next prime (344205641671).

It is not a de Polignac number, because 344205641661 - 2⁶ = 344205641597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344205641651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64527825 + ... + 64533158.

It is an arithmetic number, because the mean of its divisors is an integer number (33039611904).

Almost surely, 2^344205641661 is an apocalyptic number.

It is an amenable number.

344205641661 is a deficient number, since it is larger than the sum of its proper divisors (184428148803).

344205641661 is a wasteful number, since it uses less digits than its factorization.

344205641661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129061120.

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 344205641661 in words is "three hundred forty-four billion, two hundred five million, six hundred forty-one thousand, six hundred sixty-one".