245443640316 has 72 divisors (see below), whose sum is σ = 689176771920. Its totient is φ = 67708585728.

The previous prime is 245443640257. The next prime is 245443640333. The reversal of 245443640316 is 613046344542.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7179865 + ... + 7213968.

It is an arithmetic number, because the mean of its divisors is an integer number (9571899610).

Almost surely, 2^245443640316 is an apocalyptic number.

It is an amenable number.

245443640316 is an abundant number, since it is smaller than the sum of its proper divisors (443733131604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245443640316 is a wasteful number, since it uses less digits than its factorization.

245443640316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14393883 (or 14393874 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 42.

Adding to 245443640316 its reverse (613046344542), we get a palindrome (858489984858).

The spelling of 245443640316 in words is "two hundred forty-five billion, four hundred forty-three million, six hundred forty thousand, three hundred sixteen".