1325003663016 has 72 divisors (see below), whose sum is σ = 3944441026890. Its totient is φ = 401516258880.

The previous prime is 1325003662991. The next prime is 1325003663021. The reversal of 1325003663016 is 6103663005231.

1325003663016 is a `hidden beast` number, since 1 + 3 + 2 + 5 + 0 + 0 + 3 + 6 + 630 + 16 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1300845178116 + 24158484900 = 1140546^2 + 155430^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 76036035 + ... + 76053458.

Almost surely, 2^{1325003663016} is an apocalyptic number.

It is an amenable number.

1325003663016 is an abundant number, since it is smaller than the sum of its proper divisors (2619437363874).

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

1325003663016 is a wasteful number, since it uses less digits than its factorization.

1325003663016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152089527 (or 152089509 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

Adding to 1325003663016 its reverse (6103663005231), we get a palindrome (7428666668247).

The spelling of 1325003663016 in words is "one trillion, three hundred twenty-five billion, three million, six hundred sixty-three thousand, sixteen".