2012545644145 has 16 divisors (see below), whose sum is σ = 2556364968000. Its totient is φ = 1516776522048.

The previous prime is 2012545644143. The next prime is 2012545644211. The reversal of 2012545644145 is 5414465452102.

It is a cyclic number.

It is not a de Polignac number, because 2012545644145 - 2¹ = 2012545644143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2012545644143) 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, 59158110 + ... + 59192119.

It is an arithmetic number, because the mean of its divisors is an integer number (159772810500).

Almost surely, 2^{2012545644145} is an apocalyptic number.

It is an amenable number.

2012545644145 is a deficient number, since it is larger than the sum of its proper divisors (543819323855).

2012545644145 is a wasteful number, since it uses less digits than its factorization.

2012545644145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118350432.

The product of its (nonzero) digits is 768000, while the sum is 43.

The spelling of 2012545644145 in words is "two trillion, twelve billion, five hundred forty-five million, six hundred forty-four thousand, one hundred forty-five".