22072163997 has 8 divisors (see below), whose sum is σ = 31693363744. Its totient is φ = 13582870128.

The previous prime is 22072163957. The next prime is 22072164019. The reversal of 22072163997 is 79936127022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22072163997 - 2¹⁸ = 22071901853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22072163957) 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, 282976423 + ... + 282976500.

It is an arithmetic number, because the mean of its divisors is an integer number (3961670468).

Almost surely, 2^22072163997 is an apocalyptic number.

It is an amenable number.

22072163997 is a deficient number, since it is larger than the sum of its proper divisors (9621199747).

22072163997 is a wasteful number, since it uses less digits than its factorization.

22072163997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565952939.

The product of its (nonzero) digits is 571536, while the sum is 48.

The spelling of 22072163997 in words is "twenty-two billion, seventy-two million, one hundred sixty-three thousand, nine hundred ninety-seven".