22145440037 has 16 divisors (see below), whose sum is σ = 26418063360. Its totient is φ = 18150601392.

The previous prime is 22145440021. The next prime is 22145440043. The reversal of 22145440037 is 73004454122.

It is not a de Polignac number, because 22145440037 - 2⁴ = 22145440021 is a prime.

It is a super-2 number, since 2×22145440037² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22145439985 and 22145440012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22145440007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 513638 + ... + 555080.

It is an arithmetic number, because the mean of its divisors is an integer number (1651128960).

Almost surely, 2^22145440037 is an apocalyptic number.

It is an amenable number.

22145440037 is a deficient number, since it is larger than the sum of its proper divisors (4272623323).

22145440037 is a wasteful number, since it uses less digits than its factorization.

22145440037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44792.

The product of its (nonzero) digits is 26880, while the sum is 32.

Adding to 22145440037 its reverse (73004454122), we get a palindrome (95149894159).

The spelling of 22145440037 in words is "twenty-two billion, one hundred forty-five million, four hundred forty thousand, thirty-seven".