340221720741 has 32 divisors (see below), whose sum is σ = 525620839680. Its totient is φ = 191717881344.

The previous prime is 340221720701. The next prime is 340221720779. The reversal of 340221720741 is 147027122043.

It is not a de Polignac number, because 340221720741 - 2³⁸ = 65343813797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340221720701) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11926291 + ... + 11954783.

It is an arithmetic number, because the mean of its divisors is an integer number (16425651240).

Almost surely, 2^340221720741 is an apocalyptic number.

It is an amenable number.

340221720741 is a deficient number, since it is larger than the sum of its proper divisors (185399118939).

340221720741 is a wasteful number, since it uses less digits than its factorization.

340221720741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36365.

The product of its (nonzero) digits is 18816, while the sum is 33.

Adding to 340221720741 its reverse (147027122043), we get a palindrome (487248842784).

The spelling of 340221720741 in words is "three hundred forty billion, two hundred twenty-one million, seven hundred twenty thousand, seven hundred forty-one".