1325265763536 has 480 divisors, whose sum is σ = 4557341228160. Its totient is φ = 366221813760.

The previous prime is 1325265763517. The next prime is 1325265763553. The reversal of 1325265763536 is 6353675625231.

1325265763536 is a `hidden beast` number, since 1 + 3 + 2 + 5 + 2 + 6 + 576 + 35 + 36 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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, 56389740 + ... + 56413236.

It is an arithmetic number, because the mean of its divisors is an integer number (9494460892).

Almost surely, 2^{1325265763536} is an apocalyptic number.

1325265763536 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 1325265763536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2278670614080).

1325265763536 is an abundant number, since it is smaller than the sum of its proper divisors (3232075464624).

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

1325265763536 is a wasteful number, since it uses less digits than its factorization.

1325265763536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23632 (or 23609 counting only the distinct ones).

The product of its digits is 20412000, while the sum is 54.

The spelling of 1325265763536 in words is "one trillion, three hundred twenty-five billion, two hundred sixty-five million, seven hundred sixty-three thousand, five hundred thirty-six".