611120643 has 32 divisors (see below), whose sum is σ = 960491520. Its totient is φ = 338409120.

The previous prime is 611120623. The next prime is 611120651. The reversal of 611120643 is 346021116.

It is not a de Polignac number, because 611120643 - 2¹³ = 611112451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (611120623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84496 + ... + 91442.

It is an arithmetic number, because the mean of its divisors is an integer number (30015360).

Almost surely, 2^611120643 is an apocalyptic number.

611120643 is a deficient number, since it is larger than the sum of its proper divisors (349370877).

611120643 is a wasteful number, since it uses less digits than its factorization.

611120643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7087.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 611120643 is about 24720.8544148458. The cubic root of 611120643 is about 848.6116403426.

Adding to 611120643 its reverse (346021116), we get a palindrome (957141759).

The spelling of 611120643 in words is "six hundred eleven million, one hundred twenty thousand, six hundred forty-three".