705638062655 has 8 divisors (see below), whose sum is σ = 867418496784. Its totient is φ = 550741902400.

The previous prime is 705638062651. The next prime is 705638062697. The reversal of 705638062655 is 556260836507.

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

It is not a de Polignac number, because 705638062655 - 2² = 705638062651 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 705638062597 and 705638062606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705638062651) 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, 1721068241 + ... + 1721068650.

It is an arithmetic number, because the mean of its divisors is an integer number (108427312098).

Almost surely, 2^705638062655 is an apocalyptic number.

705638062655 is a deficient number, since it is larger than the sum of its proper divisors (161780434129).

705638062655 is a wasteful number, since it uses less digits than its factorization.

705638062655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3442136937.

The product of its (nonzero) digits is 9072000, while the sum is 53.

The spelling of 705638062655 in words is "seven hundred five billion, six hundred thirty-eight million, sixty-two thousand, six hundred fifty-five".