20224324352505 has 32 divisors (see below), whose sum is σ = 39826361804544. Its totient is φ = 8534220385536.

The previous prime is 20224324352437. The next prime is 20224324352539. The reversal of 20224324352505 is 50525342342202.

It is not a de Polignac number, because 20224324352505 - 2⁷ = 20224324352377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7408176054 + ... + 7408178783.

It is an arithmetic number, because the mean of its divisors is an integer number (1244573806392).

Almost surely, 2^{20224324352505} is an apocalyptic number.

It is an amenable number.

20224324352505 is a deficient number, since it is larger than the sum of its proper divisors (19602037452039).

20224324352505 is a wasteful number, since it uses less digits than its factorization.

20224324352505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14816354865.

The product of its (nonzero) digits is 576000, while the sum is 39.

Adding to 20224324352505 its reverse (50525342342202), we get a palindrome (70749666694707).

The spelling of 20224324352505 in words is "twenty trillion, two hundred twenty-four billion, three hundred twenty-four million, three hundred fifty-two thousand, five hundred five".