611132020 has 48 divisors (see below), whose sum is σ = 1296758736. Its totient is φ = 241920000.

The previous prime is 611132009. The next prime is 611132033. The reversal of 611132020 is 20231116.

It can be written as a sum of positive squares in 8 ways, for example, as 104611984 + 506520036 = 10228^2 + 22506^2 .

It is a junction number, because it is equal to n+sod(n) for n = 611131985 and 611132003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1451410 + ... + 1451830.

It is an arithmetic number, because the mean of its divisors is an integer number (27015807).

Almost surely, 2^611132020 is an apocalyptic number.

It is an amenable number.

611132020 is an abundant number, since it is smaller than the sum of its proper divisors (685626716).

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

611132020 is a wasteful number, since it uses less digits than its factorization.

611132020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012 (or 1010 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 611132020 is about 24721.0845231353. The cubic root of 611132020 is about 848.6169064031.

Adding to 611132020 its reverse (20231116), we get a palindrome (631363136).

The spelling of 611132020 in words is "six hundred eleven million, one hundred thirty-two thousand, twenty".