340705236555 has 32 divisors (see below), whose sum is σ = 605810664000. Its totient is φ = 181675719936.

The previous prime is 340705236503. The next prime is 340705236601. The reversal of 340705236555 is 555632507043.

340705236555 is a `hidden beast` number, since 3 + 4 + 0 + 70 + 5 + 23 + 6 + 555 = 666.

It is not a de Polignac number, because 340705236555 - 2⁸ = 340705236299 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 340705236555.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 504037 + ... + 967193.

It is an arithmetic number, because the mean of its divisors is an integer number (18931583250).

Almost surely, 2^340705236555 is an apocalyptic number.

340705236555 is a deficient number, since it is larger than the sum of its proper divisors (265105427445).

340705236555 is a wasteful number, since it uses less digits than its factorization.

340705236555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468620 (or 468614 counting only the distinct ones).

The product of its (nonzero) digits is 1890000, while the sum is 45.

The spelling of 340705236555 in words is "three hundred forty billion, seven hundred five million, two hundred thirty-six thousand, five hundred fifty-five".