340516621345 has 8 divisors (see below), whose sum is σ = 412587130176. Its totient is φ = 269768507376.

The previous prime is 340516621343. The next prime is 340516621351. The reversal of 340516621345 is 543126615043.

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

It is a cyclic number.

It is not a de Polignac number, because 340516621345 - 2¹ = 340516621343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 340516621298 and 340516621307.

It is not an unprimeable number, because it can be changed into a prime (340516621343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330598147 + ... + 330599176.

It is an arithmetic number, because the mean of its divisors is an integer number (51573391272).

Almost surely, 2^340516621345 is an apocalyptic number.

It is an amenable number.

340516621345 is a deficient number, since it is larger than the sum of its proper divisors (72070508831).

340516621345 is a wasteful number, since it uses less digits than its factorization.

340516621345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661197431.

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 340516621345 in words is "three hundred forty billion, five hundred sixteen million, six hundred twenty-one thousand, three hundred forty-five".