13316421066 has 32 divisors (see below), whose sum is σ = 28686934080. Its totient is φ = 4096587264.

The previous prime is 13316420993. The next prime is 13316421091. The reversal of 13316421066 is 66012461331.

It is a Curzon 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, 508981 + ... + 534503.

It is an arithmetic number, because the mean of its divisors is an integer number (896466690).

Almost surely, 2^13316421066 is an apocalyptic number.

13316421066 is an abundant number, since it is smaller than the sum of its proper divisors (15370513014).

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

13316421066 is a wasteful number, since it uses less digits than its factorization.

13316421066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32230.

The product of its (nonzero) digits is 15552, while the sum is 33.

Adding to 13316421066 its reverse (66012461331), we get a palindrome (79328882397).

The spelling of 13316421066 in words is "thirteen billion, three hundred sixteen million, four hundred twenty-one thousand, sixty-six".