680550111122 has 54 divisors (see below), whose sum is σ = 1197042674247. Its totient is φ = 289336842648.

The previous prime is 680550111113. The next prime is 680550111167. The reversal of 680550111122 is 221111055086.

It can be written as a sum of positive squares in only one way, i.e., 340275055561 + 340275055561 = 583331^2 + 583331^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=583331.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1363827629 + ... + 1363828127.

Almost surely, 2^680550111122 is an apocalyptic number.

680550111122 is a deficient number, since it is larger than the sum of its proper divisors (516492563125).

680550111122 is an frugal number, since it uses more digits than its factorization.

680550111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348 (or 675 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 32.

Multiplying 680550111122 by its sum of digits (32), we get a square (21777603555904 = 4666648²).

The spelling of 680550111122 in words is "six hundred eighty billion, five hundred fifty million, one hundred eleven thousand, one hundred twenty-two".