12620751855145 has 16 divisors (see below), whose sum is σ = 17313501640320. Its totient is φ = 8651708866944.

The previous prime is 12620751855067. The next prime is 12620751855149. The reversal of 12620751855145 is 54155815702621.

It is a cyclic number.

It is not a de Polignac number, because 12620751855145 - 2²⁷ = 12620617637417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12620751855092 and 12620751855101.

It is not an unprimeable number, because it can be changed into a prime (12620751855149) 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, 52398475 + ... + 52638784.

It is an arithmetic number, because the mean of its divisors is an integer number (1082093852520).

Almost surely, 2^{12620751855145} is an apocalyptic number.

It is an amenable number.

12620751855145 is a deficient number, since it is larger than the sum of its proper divisors (4692749785175).

12620751855145 is a wasteful number, since it uses less digits than its factorization.

12620751855145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105040704.

The product of its (nonzero) digits is 3360000, while the sum is 52.

The spelling of 12620751855145 in words is "twelve trillion, six hundred twenty billion, seven hundred fifty-one million, eight hundred fifty-five thousand, one hundred forty-five".