22145142355 has 16 divisors (see below), whose sum is σ = 30447000000. Its totient is φ = 15146980992.

The previous prime is 22145142307. The next prime is 22145142359. The reversal of 22145142355 is 55324154122.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22145142355 - 2¹⁷ = 22145011283 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22145142355.

It is not an unprimeable number, because it can be changed into a prime (22145142359) 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, 782980 + ... + 810769.

It is an arithmetic number, because the mean of its divisors is an integer number (1902937500).

Almost surely, 2^22145142355 is an apocalyptic number.

22145142355 is a deficient number, since it is larger than the sum of its proper divisors (8301857645).

22145142355 is a wasteful number, since it uses less digits than its factorization.

22145142355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1594158.

The product of its digits is 48000, while the sum is 34.

Adding to 22145142355 its reverse (55324154122), we get a palindrome (77469296477).

The spelling of 22145142355 in words is "twenty-two billion, one hundred forty-five million, one hundred forty-two thousand, three hundred fifty-five".