2104196372145 has 216 divisors, whose sum is σ = 4513431254904. Its totient is φ = 904043814912.

The previous prime is 2104196372123. The next prime is 2104196372207. The reversal of 2104196372145 is 5412736914012.

2104196372145 is a `hidden beast` number, since 2 + 1 + 0 + 4 + 1 + 9 + 637 + 2 + 1 + 4 + 5 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 368506060209 + 1735690311936 = 607047^2 + 1317456^2 .

It is not a de Polignac number, because 2104196372145 - 2⁹ = 2104196371633 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2104196372145.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 546117039 + ... + 546120891.

It is an arithmetic number, because the mean of its divisors is an integer number (20895515069).

Almost surely, 2^{2104196372145} is an apocalyptic number.

It is an amenable number.

2104196372145 is an abundant number, since it is smaller than the sum of its proper divisors (2409234882759).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2104196372145 is a wasteful number, since it uses less digits than its factorization.

2104196372145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4769 (or 4742 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 2104196372145 in words is "two trillion, one hundred four billion, one hundred ninety-six million, three hundred seventy-two thousand, one hundred forty-five".