245522123155 has 8 divisors (see below), whose sum is σ = 294649817472. Its totient is φ = 196402185408.

The previous prime is 245522123153. The next prime is 245522123227. The reversal of 245522123155 is 551321225542.

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

It is a cyclic number.

It is not a de Polignac number, because 245522123155 - 2¹ = 245522123153 is a prime.

It is a super-2 number, since 2×245522123155² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245522123153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1869274 + ... + 1996303.

It is an arithmetic number, because the mean of its divisors is an integer number (36831227184).

Almost surely, 2^245522123155 is an apocalyptic number.

245522123155 is a deficient number, since it is larger than the sum of its proper divisors (49127694317).

245522123155 is a wasteful number, since it uses less digits than its factorization.

245522123155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3878285.

The product of its digits is 120000, while the sum is 37.

Adding to 245522123155 its reverse (551321225542), we get a palindrome (796843348697).

The spelling of 245522123155 in words is "two hundred forty-five billion, five hundred twenty-two million, one hundred twenty-three thousand, one hundred fifty-five".