611111668 has 24 divisors (see below), whose sum is σ = 1136268000. Its totient is φ = 286764768.

The previous prime is 611111651. The next prime is 611111671. The reversal of 611111668 is 866111116.

611111668 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 7 ways as a sum of consecutive naturals, for example, 29443 + ... + 45706.

It is an arithmetic number, because the mean of its divisors is an integer number (47344500).

Almost surely, 2^611111668 is an apocalyptic number.

It is an amenable number.

611111668 is a deficient number, since it is larger than the sum of its proper divisors (525156332).

611111668 is a wasteful number, since it uses less digits than its factorization.

611111668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75279 (or 75277 counting only the distinct ones).

The product of its digits is 1728, while the sum is 31.

The square root of 611111668 is about 24720.6728872820. The cubic root of 611111668 is about 848.6074860474.

The spelling of 611111668 in words is "six hundred eleven million, one hundred eleven thousand, six hundred sixty-eight".