340323747455 has 4 divisors (see below), whose sum is σ = 408388496952. Its totient is φ = 272258997960.

The previous prime is 340323747451. The next prime is 340323747503. The reversal of 340323747455 is 554747323043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 554747323043 = 510403 ⋅1086881.

It is not a de Polignac number, because 340323747455 - 2² = 340323747451 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 (340323747451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34032374741 + ... + 34032374750.

It is an arithmetic number, because the mean of its divisors is an integer number (102097124238).

Almost surely, 2^340323747455 is an apocalyptic number.

340323747455 is a deficient number, since it is larger than the sum of its proper divisors (68064749497).

340323747455 is an equidigital number, since it uses as much as digits as its factorization.

340323747455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68064749496.

The product of its (nonzero) digits is 4233600, while the sum is 47.

The spelling of 340323747455 in words is "three hundred forty billion, three hundred twenty-three million, seven hundred forty-seven thousand, four hundred fifty-five".