611700560 has 80 divisors (see below), whose sum is σ = 1466223120. Its totient is φ = 237219840.

The previous prime is 611700533. The next prime is 611700589. The reversal of 611700560 is 65007116.

611700560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 226576 + 611473984 = 476^2 + 24728^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent 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, 376550 + ... + 378170.

It is an arithmetic number, because the mean of its divisors is an integer number (18327789).

Almost surely, 2^611700560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 611700560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (733111560).

611700560 is an abundant number, since it is smaller than the sum of its proper divisors (854522560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

611700560 is a wasteful number, since it uses less digits than its factorization.

611700560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1776 (or 1770 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 611700560 is about 24732.5809409370. The cubic root of 611700560 is about 848.8799827388.

Adding to 611700560 its reverse (65007116), we get a palindrome (676707676).

The spelling of 611700560 in words is "six hundred eleven million, seven hundred thousand, five hundred sixty".