2145144045015 has 20 divisors (see below), whose sum is σ = 3845369325864. Its totient is φ = 1144076823792.

The previous prime is 2145144045001. The next prime is 2145144045041. The reversal of 2145144045015 is 5105404415412.

2145144045015 is a `hidden beast` number, since 2 + 1 + 4 + 5 + 144 + 0 + 4 + 501 + 5 = 666.

It is not a de Polignac number, because 2145144045015 - 2¹⁵ = 2145144012247 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2648325577 + ... + 2648326386.

Almost surely, 2^{2145144045015} is an apocalyptic number.

2145144045015 is a deficient number, since it is larger than the sum of its proper divisors (1700225280849).

2145144045015 is an equidigital number, since it uses as much as digits as its factorization.

2145144045015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5296651980 (or 5296651971 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 36.

The spelling of 2145144045015 in words is "two trillion, one hundred forty-five billion, one hundred forty-four million, forty-five thousand, fifteen".