1325604263536 has 80 divisors (see below), whose sum is σ = 3031444768768. Its totient is φ = 549519033600.

The previous prime is 1325604263513. The next prime is 1325604263539. The reversal of 1325604263536 is 6353624065231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325604263539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7035031 + ... + 7221001.

Almost surely, 2^{1325604263536} is an apocalyptic number.

1325604263536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1325604263536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1515722384384).

1325604263536 is an abundant number, since it is smaller than the sum of its proper divisors (1705840505232).

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

1325604263536 is a wasteful number, since it uses less digits than its factorization.

1325604263536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188070 (or 188064 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 46.

The spelling of 1325604263536 in words is "one trillion, three hundred twenty-five billion, six hundred four million, two hundred sixty-three thousand, five hundred thirty-six".