245561111522 has 8 divisors (see below), whose sum is σ = 390008824236. Its totient is φ = 115558170112.

The previous prime is 245561111429. The next prime is 245561111567. The reversal of 245561111522 is 225111165542.

245561111522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 241767906601 + 3793204921 = 491699^2 + 61589^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3611192783 + ... + 3611192850.

Almost surely, 2^245561111522 is an apocalyptic number.

245561111522 is a deficient number, since it is larger than the sum of its proper divisors (144447712714).

245561111522 is a wasteful number, since it uses less digits than its factorization.

245561111522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7222385652.

The product of its digits is 24000, while the sum is 35.

The spelling of 245561111522 in words is "two hundred forty-five billion, five hundred sixty-one million, one hundred eleven thousand, five hundred twenty-two".