42220343455455 has 16 divisors (see below), whose sum is σ = 73693690395264. Its totient is φ = 20470469554080.

The previous prime is 42220343455417. The next prime is 42220343455471. The reversal of 42220343455455 is 55455434302224.

It is not a de Polignac number, because 42220343455455 - 2⁷ = 42220343455327 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127940434549 + ... + 127940434878.

It is an arithmetic number, because the mean of its divisors is an integer number (4605855649704).

Almost surely, 2^{42220343455455} is an apocalyptic number.

42220343455455 is a deficient number, since it is larger than the sum of its proper divisors (31473346939809).

42220343455455 is a wasteful number, since it uses less digits than its factorization.

42220343455455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255880869446.

The product of its (nonzero) digits is 11520000, while the sum is 48.

Adding to 42220343455455 its reverse (55455434302224), we get a palindrome (97675777757679).

The spelling of 42220343455455 in words is "forty-two trillion, two hundred twenty billion, three hundred forty-three million, four hundred fifty-five thousand, four hundred fifty-five".