22196145437 has 8 divisors (see below), whose sum is σ = 22469166720. Its totient is φ = 21923257600.

The previous prime is 22196145409. The next prime is 22196145463. The reversal of 22196145437 is 73454169122.

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

It is a cyclic number.

It is not a de Polignac number, because 22196145437 - 2³⁰ = 21122403613 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 (22196145407) 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, 324812 + ... + 387162.

It is an arithmetic number, because the mean of its divisors is an integer number (2808645840).

Almost surely, 2^22196145437 is an apocalyptic number.

It is an amenable number.

22196145437 is a deficient number, since it is larger than the sum of its proper divisors (273021283).

22196145437 is an equidigital number, since it uses as much as digits as its factorization.

22196145437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66723.

The product of its digits is 362880, while the sum is 44.

The spelling of 22196145437 in words is "twenty-two billion, one hundred ninety-six million, one hundred forty-five thousand, four hundred thirty-seven".