1302581630256 has 20 divisors (see below), whose sum is σ = 3365002544952. Its totient is φ = 434193876736.

The previous prime is 1302581630227. The next prime is 1302581630257. The reversal of 1302581630256 is 6520361852031.

It is not an unprimeable number, because it can be changed into a prime (1302581630257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13568558601 + ... + 13568558696.

Almost surely, 2^{1302581630256} is an apocalyptic number.

1302581630256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1302581630256 is an abundant number, since it is smaller than the sum of its proper divisors (2062420914696).

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

1302581630256 is a wasteful number, since it uses less digits than its factorization.

1302581630256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27137117308 (or 27137117302 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 1302581630256 in words is "one trillion, three hundred two billion, five hundred eighty-one million, six hundred thirty thousand, two hundred fifty-six".