611000505560 has 64 divisors (see below), whose sum is σ = 1391036025600. Its totient is φ = 241517961216.

The previous prime is 611000505539. The next prime is 611000505641. The reversal of 611000505560 is 65505000116.

611000505560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1322681 + ... + 1723799.

It is an arithmetic number, because the mean of its divisors is an integer number (21734937900).

Almost surely, 2^611000505560 is an apocalyptic number.

It is an amenable number.

611000505560 is an abundant number, since it is smaller than the sum of its proper divisors (780035520040).

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

611000505560 is a wasteful number, since it uses less digits than its factorization.

611000505560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401580 (or 401576 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

Adding to 611000505560 its reverse (65505000116), we get a palindrome (676505505676).

The spelling of 611000505560 in words is "six hundred eleven billion, five hundred five thousand, five hundred sixty".