1306136646636 has 48 divisors (see below), whose sum is σ = 3147673060224. Its totient is φ = 421279439616.

The previous prime is 1306136646629. The next prime is 1306136646671. The reversal of 1306136646636 is 6366466316031.

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, 11773165 + ... + 11883588.

It is an arithmetic number, because the mean of its divisors is an integer number (65576522088).

Almost surely, 2^{1306136646636} is an apocalyptic number.

It is an amenable number.

1306136646636 is an abundant number, since it is smaller than the sum of its proper divisors (1841536413588).

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

1306136646636 is a wasteful number, since it uses less digits than its factorization.

1306136646636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23656910 (or 23656908 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 51.

The spelling of 1306136646636 in words is "one trillion, three hundred six billion, one hundred thirty-six million, six hundred forty-six thousand, six hundred thirty-six".