1306410251256 has 144 divisors (see below), whose sum is σ = 3952846923480. Its totient is φ = 389391868800.

The previous prime is 1306410251249. The next prime is 1306410251257. The reversal of 1306410251256 is 6521520146031.

1306410251256 is a `hidden beast` number, since 1 + 3 + 0 + 641 + 0 + 2 + 5 + 1 + 2 + 5 + 6 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1306410251256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306410251257) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 697710 + ... + 1760573.

Almost surely, 2^{1306410251256} is an apocalyptic number.

It is an amenable number.

1306410251256 is an abundant number, since it is smaller than the sum of its proper divisors (2646436672224).

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

1306410251256 is a wasteful number, since it uses less digits than its factorization.

1306410251256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2458378 (or 2458360 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

Adding to 1306410251256 its reverse (6521520146031), we get a palindrome (7827930397287).

The spelling of 1306410251256 in words is "one trillion, three hundred six billion, four hundred ten million, two hundred fifty-one thousand, two hundred fifty-six".