22168331672 has 8 divisors (see below), whose sum is σ = 41565621900. Its totient is φ = 11084165832.

The previous prime is 22168331629. The next prime is 22168331693. The reversal of 22168331672 is 27613386122.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1385520722 + ... + 1385520737.

Almost surely, 2^22168331672 is an apocalyptic number.

It is an amenable number.

22168331672 is a deficient number, since it is larger than the sum of its proper divisors (19397290228).

22168331672 is a wasteful number, since it uses less digits than its factorization.

22168331672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2771041465 (or 2771041461 counting only the distinct ones).

The product of its digits is 145152, while the sum is 41.

The spelling of 22168331672 in words is "twenty-two billion, one hundred sixty-eight million, three hundred thirty-one thousand, six hundred seventy-two".