12315769665 has 16 divisors (see below), whose sum is σ = 19706913600. Its totient is φ = 6567849792.

The previous prime is 12315769633. The next prime is 12315769667. The reversal of 12315769665 is 56696751321.

It is not a de Polignac number, because 12315769665 - 2⁵ = 12315769633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12315769667) 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, 195426 + ... + 250644.

It is an arithmetic number, because the mean of its divisors is an integer number (1231682100).

Almost surely, 2^12315769665 is an apocalyptic number.

12315769665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12315769665 is a deficient number, since it is larger than the sum of its proper divisors (7391143935).

12315769665 is a wasteful number, since it uses less digits than its factorization.

12315769665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70096.

The product of its digits is 2041200, while the sum is 51.

The spelling of 12315769665 in words is "twelve billion, three hundred fifteen million, seven hundred sixty-nine thousand, six hundred sixty-five".