18866850022 has 16 divisors (see below), whose sum is σ = 29366295552. Its totient is φ = 9084264840.

The previous prime is 18866850017. The next prime is 18866850043. The reversal of 18866850022 is 22005866881.

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, 1538838 + ... + 1551049.

It is an arithmetic number, because the mean of its divisors is an integer number (1835393472).

Almost surely, 2^18866850022 is an apocalyptic number.

18866850022 is a deficient number, since it is larger than the sum of its proper divisors (10499445530).

18866850022 is a wasteful number, since it uses less digits than its factorization.

18866850022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3090003.

The product of its (nonzero) digits is 368640, while the sum is 46.

The spelling of 18866850022 in words is "eighteen billion, eight hundred sixty-six million, eight hundred fifty thousand, twenty-two".