344554160021 has 4 divisors (see below), whose sum is σ = 346617358752. Its totient is φ = 342490961292.

The previous prime is 344554160017. The next prime is 344554160029. The reversal of 344554160021 is 120061455443.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 120061455443 = 3323 ⋅36130441.

It is a cyclic number.

It is not a de Polignac number, because 344554160021 - 2² = 344554160017 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 (344554160029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1031599115 + ... + 1031599448.

It is an arithmetic number, because the mean of its divisors is an integer number (86654339688).

Almost surely, 2^344554160021 is an apocalyptic number.

It is an amenable number.

344554160021 is a deficient number, since it is larger than the sum of its proper divisors (2063198731).

344554160021 is a wasteful number, since it uses less digits than its factorization.

344554160021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2063198730.

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 344554160021 in words is "three hundred forty-four billion, five hundred fifty-four million, one hundred sixty thousand, twenty-one".