22190367778 has 16 divisors (see below), whose sum is σ = 33515463744. Its totient is φ = 11018588400.

The previous prime is 22190367769. The next prime is 22190367791. The reversal of 22190367778 is 87776309122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1356001 + ... + 1372267.

It is an arithmetic number, because the mean of its divisors is an integer number (2094716484).

Almost surely, 2^22190367778 is an apocalyptic number.

22190367778 is a deficient number, since it is larger than the sum of its proper divisors (11325095966).

22190367778 is a wasteful number, since it uses less digits than its factorization.

22190367778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20937.

The product of its (nonzero) digits is 1778112, while the sum is 52.

The spelling of 22190367778 in words is "twenty-two billion, one hundred ninety million, three hundred sixty-seven thousand, seven hundred seventy-eight".