12611799669 has 32 divisors (see below), whose sum is σ = 19365131520. Its totient is φ = 7151772672.

The previous prime is 12611799653. The next prime is 12611799677. The reversal of 12611799669 is 96699711621.

It is not a de Polignac number, because 12611799669 - 2⁴ = 12611799653 is a prime.

It is a super-2 number, since 2×12611799669² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12611799769) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1520317 + ... + 1528589.

It is an arithmetic number, because the mean of its divisors is an integer number (605160360).

Almost surely, 2^12611799669 is an apocalyptic number.

It is an amenable number.

12611799669 is a deficient number, since it is larger than the sum of its proper divisors (6753331851).

12611799669 is a wasteful number, since it uses less digits than its factorization.

12611799669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8829.

The product of its digits is 2204496, while the sum is 57.

The spelling of 12611799669 in words is "twelve billion, six hundred eleven million, seven hundred ninety-nine thousand, six hundred sixty-nine".