22153604162443 has 8 divisors (see below), whose sum is σ = 24412558433648. Its totient is φ = 19973911444704.

The previous prime is 22153604162383. The next prime is 22153604162581. The reversal of 22153604162443 is 34426140635122.

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 22153604162443 - 2²⁵ = 22153570608011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22153604162443.

It is not an unprimeable number, because it can be changed into a prime (22153604162743) 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, 19815387780 + ... + 19815388897.

It is an arithmetic number, because the mean of its divisors is an integer number (3051569804206).

Almost surely, 2^{22153604162443} is an apocalyptic number.

22153604162443 is a deficient number, since it is larger than the sum of its proper divisors (2258954271205).

22153604162443 is a wasteful number, since it uses less digits than its factorization.

22153604162443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39630776733.

The product of its (nonzero) digits is 829440, while the sum is 43.

Adding to 22153604162443 its reverse (34426140635122), we get a palindrome (56579744797565).

The spelling of 22153604162443 in words is "twenty-two trillion, one hundred fifty-three billion, six hundred four million, one hundred sixty-two thousand, four hundred forty-three".