22066203537 has 24 divisors (see below), whose sum is σ = 36474197760. Its totient is φ = 12592834560.

The previous prime is 22066203493. The next prime is 22066203569. The reversal of 22066203537 is 73530266022.

It is a happy number.

22066203537 is a `hidden beast` number, since 2 + 20 + 6 + 620 + 3 + 5 + 3 + 7 = 666.

It is not a de Polignac number, because 22066203537 - 2⁸ = 22066203281 is a prime.

It is a super-2 number, since 2×22066203537² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22066203637) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 179289 + ... + 276182.

It is an arithmetic number, because the mean of its divisors is an integer number (1519758240).

Almost surely, 2^22066203537 is an apocalyptic number.

It is an amenable number.

22066203537 is a deficient number, since it is larger than the sum of its proper divisors (14407994223).

22066203537 is a wasteful number, since it uses less digits than its factorization.

22066203537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456253 (or 456250 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

Adding to 22066203537 its reverse (73530266022), we get a palindrome (95596469559).

The spelling of 22066203537 in words is "twenty-two billion, sixty-six million, two hundred three thousand, five hundred thirty-seven".