1305616364436 has 48 divisors (see below), whose sum is σ = 3048987916800. Its totient is φ = 434841351552.

The previous prime is 1305616364389. The next prime is 1305616364449. The reversal of 1305616364436 is 6344636165031.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129533245 + ... + 129543323.

It is an arithmetic number, because the mean of its divisors is an integer number (63520581600).

Almost surely, 2^{1305616364436} is an apocalyptic number.

It is an amenable number.

1305616364436 is an abundant number, since it is smaller than the sum of its proper divisors (1743371552364).

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

1305616364436 is a wasteful number, since it uses less digits than its factorization.

1305616364436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18048 (or 18046 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 48.

The spelling of 1305616364436 in words is "one trillion, three hundred five billion, six hundred sixteen million, three hundred sixty-four thousand, four hundred thirty-six".