611111017772648 has 64 divisors (see below), whose sum is σ = 1158501606840000. Its totient is φ = 302194311547392.

The previous prime is 611111017772573. The next prime is 611111017772669. The reversal of 611111017772648 is 846277710111116.

It is a self number, because there is not a number n which added to its sum of digits gives 611111017772648.

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, 1609271903 + ... + 1609651601.

It is an arithmetic number, because the mean of its divisors is an integer number (18101587606875).

Almost surely, 2^{611111017772648} is an apocalyptic number.

It is an amenable number.

611111017772648 is a deficient number, since it is larger than the sum of its proper divisors (547390589067352).

611111017772648 is a wasteful number, since it uses less digits than its factorization.

611111017772648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385314 (or 385310 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 53.

The spelling of 611111017772648 in words is "six hundred eleven trillion, one hundred eleven billion, seventeen million, seven hundred seventy-two thousand, six hundred forty-eight".