340358553665 has 16 divisors (see below), whose sum is σ = 440661050256. Its totient is φ = 250877088000.

The previous prime is 340358553649. The next prime is 340358553683. The reversal of 340358553665 is 566355853043.

It can be written as a sum of positive squares in 8 ways, for example, as 80306491456 + 260052062209 = 283384^2 + 509953^2 .

It is not a de Polignac number, because 340358553665 - 2⁴ = 340358553649 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4804286 + ... + 4874615.

It is an arithmetic number, because the mean of its divisors is an integer number (27541315641).

Almost surely, 2^340358553665 is an apocalyptic number.

It is an amenable number.

340358553665 is a deficient number, since it is larger than the sum of its proper divisors (100302496591).

340358553665 is a wasteful number, since it uses less digits than its factorization.

340358553665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9679460.

The product of its (nonzero) digits is 19440000, while the sum is 53.

The spelling of 340358553665 in words is "three hundred forty billion, three hundred fifty-eight million, five hundred fifty-three thousand, six hundred sixty-five".