12662581337 has 16 divisors (see below), whose sum is σ = 14852253312. Its totient is φ = 10571084160.

The previous prime is 12662581333. The next prime is 12662581381. The reversal of 12662581337 is 73318526621.

It is not a de Polignac number, because 12662581337 - 2² = 12662581333 is a prime.

It is a super-2 number, since 2×12662581337² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12662581333) 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, 73739 + ... + 175392.

It is an arithmetic number, because the mean of its divisors is an integer number (928265832).

Almost surely, 2^12662581337 is an apocalyptic number.

It is an amenable number.

12662581337 is a deficient number, since it is larger than the sum of its proper divisors (2189671975).

12662581337 is a wasteful number, since it uses less digits than its factorization.

12662581337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249328.

The product of its digits is 362880, while the sum is 44.

The spelling of 12662581337 in words is "twelve billion, six hundred sixty-two million, five hundred eighty-one thousand, three hundred thirty-seven".