12145275557001 has 6 divisors (see below), whose sum is σ = 17543175804570. Its totient is φ = 8096850371328.

The previous prime is 12145275556979. The next prime is 12145275557029. The reversal of 12145275557001 is 10075557254121.

12145275557001 is a `hidden beast` number, since 1 + 2 + 1 + 4 + 5 + 2 + 75 + 5 + 570 + 0 + 1 = 666.

12145275557001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8262893975625 + 3882381581376 = 2874525^2 + 1970376^2 .

It is not a de Polignac number, because 12145275557001 - 2⁹ = 12145275556489 is a prime.

It is a super-2 number, since 2×12145275557001² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12145275557081) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 674737530936 + ... + 674737530953.

It is an arithmetic number, because the mean of its divisors is an integer number (2923862634095).

Almost surely, 2^{12145275557001} is an apocalyptic number.

It is an amenable number.

12145275557001 is a deficient number, since it is larger than the sum of its proper divisors (5397900247569).

12145275557001 is a wasteful number, since it uses less digits than its factorization.

12145275557001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349475061895 (or 1349475061892 counting only the distinct ones).

The product of its (nonzero) digits is 490000, while the sum is 45.

The spelling of 12145275557001 in words is "twelve trillion, one hundred forty-five billion, two hundred seventy-five million, five hundred fifty-seven thousand, one".