1265254244352 has 672 divisors, whose sum is σ = 4447001520000. Its totient is φ = 339554598912.

The previous prime is 1265254244351. The next prime is 1265254244381. The reversal of 1265254244352 is 2534424525621.

1265254244352 is a `hidden beast` number, since 1 + 2 + 6 + 5 + 2 + 54 + 244 + 352 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a junction number, because it is equal to n+sod(n) for n = 1265254244298 and 1265254244307.

It is not an unprimeable number, because it can be changed into a prime (1265254244351) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2535579399 + ... + 2535579897.

Almost surely, 2^{1265254244352} is an apocalyptic number.

1265254244352 is a gapful number since it is divisible by the number (12) 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 1265254244352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2223500760000).

1265254244352 is an abundant number, since it is smaller than the sum of its proper divisors (3181747275648).

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

1265254244352 is an frugal number, since it uses more digits than its factorization.

1265254244352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589 (or 528 counting only the distinct ones).

The product of its digits is 2304000, while the sum is 45.

Adding to 1265254244352 its reverse (2534424525621), we get a palindrome (3799678769973).

The spelling of 1265254244352 in words is "one trillion, two hundred sixty-five billion, two hundred fifty-four million, two hundred forty-four thousand, three hundred fifty-two".