344445555566667 has 8 divisors (see below), whose sum is σ = 459293144731024. Its totient is φ = 229614168390048.

The previous prime is 344445555566627. The next prime is 344445555566683. The reversal of 344445555566667 is 766665555544443.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 344445555566667 - 2¹² = 344445555562571 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (344445555566627) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4050447328 + ... + 4050532365.

It is an arithmetic number, because the mean of its divisors is an integer number (57411643091378).

Almost surely, 2^{344445555566667} is an apocalyptic number.

344445555566667 is a deficient number, since it is larger than the sum of its proper divisors (114847589164357).

344445555566667 is a wasteful number, since it uses less digits than its factorization.

344445555566667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8100993869.

The product of its digits is 21772800000, while the sum is 75.

The spelling of 344445555566667 in words is "three hundred forty-four trillion, four hundred forty-five billion, five hundred fifty-five million, five hundred sixty-six thousand, six hundred sixty-seven".