22146109672 has 32 divisors (see below), whose sum is σ = 41692825800. Its totient is φ = 11028086784.

The previous prime is 22146109631. The next prime is 22146109691. The reversal of 22146109672 is 27690164122.

It can be written as a sum of positive squares in 4 ways, for example, as 11531752996 + 10614356676 = 107386^2 + 103026^2 .

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, 3524998 + ... + 3531274.

Almost surely, 2^22146109672 is an apocalyptic number.

It is an amenable number.

22146109672 is a deficient number, since it is larger than the sum of its proper divisors (19546716128).

22146109672 is a wasteful number, since it uses less digits than its factorization.

22146109672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8005 (or 8001 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 22146109672 in words is "twenty-two billion, one hundred forty-six million, one hundred nine thousand, six hundred seventy-two".