611326506 has 64 divisors (see below), whose sum is σ = 1458835200. Its totient is φ = 167132160.

The previous prime is 611326489. The next prime is 611326517. The reversal of 611326506 is 605623116.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91570 + ... + 98018.

It is an arithmetic number, because the mean of its divisors is an integer number (22794300).

Almost surely, 2^611326506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 611326506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (729417600).

611326506 is an abundant number, since it is smaller than the sum of its proper divisors (847508694).

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

611326506 is a wasteful number, since it uses less digits than its factorization.

611326506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6559.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 611326506 is about 24725.0178159693. The cubic root of 611326506 is about 848.7069178341.

The spelling of 611326506 in words is "six hundred eleven million, three hundred twenty-six thousand, five hundred six".