12605522745 has 16 divisors (see below), whose sum is σ = 20170624320. Its totient is φ = 6722349504.

The previous prime is 12605522737. The next prime is 12605522767. The reversal of 12605522745 is 54722550621.

It is not a de Polignac number, because 12605522745 - 2³ = 12605522737 is a prime.

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, 177567 + ... + 238203.

It is an arithmetic number, because the mean of its divisors is an integer number (1260664020).

Almost surely, 2^12605522745 is an apocalyptic number.

12605522745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12605522745 is a deficient number, since it is larger than the sum of its proper divisors (7565101575).

12605522745 is a wasteful number, since it uses less digits than its factorization.

12605522745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74504.

The product of its (nonzero) digits is 168000, while the sum is 39.

The spelling of 12605522745 in words is "twelve billion, six hundred five million, five hundred twenty-two thousand, seven hundred forty-five".