1306215943552 has 64 divisors (see below), whose sum is σ = 2899032922800. Its totient is φ = 582080292864.

The previous prime is 1306215943537. The next prime is 1306215943633. The reversal of 1306215943552 is 2553495126031.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13485978 + ... + 13582489.

Almost surely, 2^{1306215943552} is an apocalyptic number.

It is an amenable number.

1306215943552 is an abundant number, since it is smaller than the sum of its proper divisors (1592816979248).

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

1306215943552 is a wasteful number, since it uses less digits than its factorization.

1306215943552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27068523 (or 27068511 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 46.

The spelling of 1306215943552 in words is "one trillion, three hundred six billion, two hundred fifteen million, nine hundred forty-three thousand, five hundred fifty-two".