22161696 has 48 divisors (see below), whose sum is σ = 60709824. Its totient is φ = 7065344.

The previous prime is 22161679. The next prime is 22161697. The reversal of 22161696 is 69616122.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×22161696² = 982281539192832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22161697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2811 + ... + 7226.

It is an arithmetic number, because the mean of its divisors is an integer number (1264788).

Almost surely, 2^22161696 is an apocalyptic number.

It is an amenable number.

22161696 is an abundant number, since it is smaller than the sum of its proper divisors (38548128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22161696 is a wasteful number, since it uses less digits than its factorization.

22161696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10073 (or 10065 counting only the distinct ones).

The product of its digits is 7776, while the sum is 33.

The square root of 22161696 is about 4707.6210552677. The cubic root of 22161696 is about 280.8887407125. Note that the first 3 decimals are identical.

The spelling of 22161696 in words is "twenty-two million, one hundred sixty-one thousand, six hundred ninety-six".