22344243015551 has 4 divisors (see below), whose sum is σ = 22344374207400. Its totient is φ = 22344111823704.

The previous prime is 22344243015547. The next prime is 22344243015557. The reversal of 22344243015551 is 15551034244322.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22344243015551 - 2² = 22344243015547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22344243015499 and 22344243015508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22344243015557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65340116 + ... + 65681193.

It is an arithmetic number, because the mean of its divisors is an integer number (5586093551850).

Almost surely, 2^{22344243015551} is an apocalyptic number.

22344243015551 is a deficient number, since it is larger than the sum of its proper divisors (131191849).

22344243015551 is a wasteful number, since it uses less digits than its factorization.

22344243015551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131191848.

The product of its (nonzero) digits is 576000, while the sum is 41.

Adding to 22344243015551 its reverse (15551034244322), we get a palindrome (37895277259873).

The spelling of 22344243015551 in words is "twenty-two trillion, three hundred forty-four billion, two hundred forty-three million, fifteen thousand, five hundred fifty-one".