705711220511 has 16 divisors (see below), whose sum is σ = 797529424896. Its totient is φ = 618650760000.

The previous prime is 705711220481. The next prime is 705711220531. The reversal of 705711220511 is 115022117507.

It is a cyclic number.

It is not a de Polignac number, because 705711220511 - 2¹⁸ = 705710958367 is a prime.

It is a super-2 number, since 2×705711220511² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705711220531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3586625 + ... + 3778266.

It is an arithmetic number, because the mean of its divisors is an integer number (49845589056).

Almost surely, 2^705711220511 is an apocalyptic number.

705711220511 is a deficient number, since it is larger than the sum of its proper divisors (91818204385).

705711220511 is a wasteful number, since it uses less digits than its factorization.

705711220511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7365214.

The product of its (nonzero) digits is 4900, while the sum is 32.

The spelling of 705711220511 in words is "seven hundred five billion, seven hundred eleven million, two hundred twenty thousand, five hundred eleven".