245331661044 has 12 divisors (see below), whose sum is σ = 572440542464. Its totient is φ = 81777220344.

The previous prime is 245331661039. The next prime is 245331661093. The reversal of 245331661044 is 440166133542.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 245331660993 and 245331661011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10222152532 + ... + 10222152555.

Almost surely, 2^245331661044 is an apocalyptic number.

It is an amenable number.

245331661044 is an abundant number, since it is smaller than the sum of its proper divisors (327108881420).

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

245331661044 is a wasteful number, since it uses less digits than its factorization.

245331661044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20444305094 (or 20444305092 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

Adding to 245331661044 its reverse (440166133542), we get a palindrome (685497794586).

The spelling of 245331661044 in words is "two hundred forty-five billion, three hundred thirty-one million, six hundred sixty-one thousand, forty-four".