22051544243455 has 8 divisors (see below), whose sum is σ = 26663851971504. Its totient is φ = 17506569475200.

The previous prime is 22051544243429. The next prime is 22051544243473. The reversal of 22051544243455 is 55434244515022.

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

It is not a de Polignac number, because 22051544243455 - 2⁵ = 22051544243423 is a prime.

It is a super-5 number, since 5×22051544243455⁵ (a number of 68 digits) contains 55555 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16833239226 + ... + 16833240535.

It is an arithmetic number, because the mean of its divisors is an integer number (3332981496438).

Almost surely, 2^{22051544243455} is an apocalyptic number.

22051544243455 is a deficient number, since it is larger than the sum of its proper divisors (4612307728049).

22051544243455 is a wasteful number, since it uses less digits than its factorization.

22051544243455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33666479897.

The product of its (nonzero) digits is 3840000, while the sum is 46.

Adding to 22051544243455 its reverse (55434244515022), we get a palindrome (77485788758477).

The spelling of 22051544243455 in words is "twenty-two trillion, fifty-one billion, five hundred forty-four million, two hundred forty-three thousand, four hundred fifty-five".