13282620666 has 32 divisors (see below), whose sum is σ = 30365380608. Its totient is φ = 3794396400.

The previous prime is 13282620653. The next prime is 13282620667. The reversal of 13282620666 is 66602628231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13282620667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263391 + ... + 309741.

It is an arithmetic number, because the mean of its divisors is an integer number (948918144).

Almost surely, 2^13282620666 is an apocalyptic number.

13282620666 is an abundant number, since it is smaller than the sum of its proper divisors (17082759942).

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

13282620666 is a wasteful number, since it uses less digits than its factorization.

13282620666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53186.

The product of its (nonzero) digits is 248832, while the sum is 42.

The spelling of 13282620666 in words is "thirteen billion, two hundred eighty-two million, six hundred twenty thousand, six hundred sixty-six".