245169561315 has 96 divisors (see below), whose sum is σ = 476865100800. Its totient is φ = 107141239296.

The previous prime is 245169561281. The next prime is 245169561383. The reversal of 245169561315 is 513165961542.

It is a Cunningham number, because it is equal to 495146²-1.

It is not a de Polignac number, because 245169561315 - 2⁶ = 245169561251 is a prime.

It is a super-2 number, since 2×245169561315² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1402911 + ... + 1567959.

It is an arithmetic number, because the mean of its divisors is an integer number (4967344800).

Almost surely, 2^245169561315 is an apocalyptic number.

245169561315 is a deficient number, since it is larger than the sum of its proper divisors (231695539485).

245169561315 is a wasteful number, since it uses less digits than its factorization.

245169561315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165161 (or 165154 counting only the distinct ones).

The product of its digits is 972000, while the sum is 48.

The spelling of 245169561315 in words is "two hundred forty-five billion, one hundred sixty-nine million, five hundred sixty-one thousand, three hundred fifteen".