245220455105 has 16 divisors (see below), whose sum is σ = 295286584320. Its totient is φ = 195496141632.

The previous prime is 245220455087. The next prime is 245220455107. The reversal of 245220455105 is 501554022542.

It is a cyclic number.

It is not a de Polignac number, because 245220455105 - 2¹⁶ = 245220389569 is a prime.

It is a super-2 number, since 2×245220455105² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (245220455107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1670747 + ... + 1811583.

It is an arithmetic number, because the mean of its divisors is an integer number (18455411520).

Almost surely, 2^245220455105 is an apocalyptic number.

It is an amenable number.

245220455105 is a deficient number, since it is larger than the sum of its proper divisors (50066129215).

245220455105 is a wasteful number, since it uses less digits than its factorization.

245220455105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142048.

The product of its (nonzero) digits is 80000, while the sum is 35.

Adding to 245220455105 its reverse (501554022542), we get a palindrome (746774477647).

The spelling of 245220455105 in words is "two hundred forty-five billion, two hundred twenty million, four hundred fifty-five thousand, one hundred five".