340163020322421 has 32 divisors (see below), whose sum is σ = 467580644711040. Its totient is φ = 219866400000000.

The previous prime is 340163020322401. The next prime is 340163020322429. The reversal of 340163020322421 is 124223020361043.

It is not a de Polignac number, because 340163020322421 - 2³³ = 340154430387829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340163020322429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 251297421 + ... + 252647421.

It is an arithmetic number, because the mean of its divisors is an integer number (14611895147220).

Almost surely, 2^{340163020322421} is an apocalyptic number.

It is an amenable number.

340163020322421 is a deficient number, since it is larger than the sum of its proper divisors (127417624388619).

340163020322421 is a wasteful number, since it uses less digits than its factorization.

340163020322421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369637.

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 340163020322421 its reverse (124223020361043), we get a palindrome (464386040683464).

The spelling of 340163020322421 in words is "three hundred forty trillion, one hundred sixty-three billion, twenty million, three hundred twenty-two thousand, four hundred twenty-one".