611504461140 has 48 divisors (see below), whose sum is σ = 1752031393728. Its totient is φ = 159275579904.

The previous prime is 611504461133. The next prime is 611504461157. The reversal of 611504461140 is 41164405116.

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, 118506037 + ... + 118511196.

It is an arithmetic number, because the mean of its divisors is an integer number (36500654036).

Almost surely, 2^611504461140 is an apocalyptic number.

611504461140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

611504461140 is an abundant number, since it is smaller than the sum of its proper divisors (1140526932588).

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

611504461140 is a wasteful number, since it uses less digits than its factorization.

611504461140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237017288 (or 237017286 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

Adding to 611504461140 its reverse (41164405116), we get a palindrome (652668866256).

The spelling of 611504461140 in words is "six hundred eleven billion, five hundred four million, four hundred sixty-one thousand, one hundred forty".