2165612052150 has 72 divisors (see below), whose sum is σ = 5960186976744. Its totient is φ = 563411260800.

The previous prime is 2165612052139. The next prime is 2165612052157. The reversal of 2165612052150 is 512502165612.

2165612052150 is a `hidden beast` number, since 2 + 1 + 6 + 5 + 6 + 120 + 521 + 5 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2165612052157) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 58670224 + ... + 58707123.

It is an arithmetic number, because the mean of its divisors is an integer number (82780374677).

Almost surely, 2^{2165612052150} is an apocalyptic number.

2165612052150 is an abundant number, since it is smaller than the sum of its proper divisors (3794574924594).

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

2165612052150 is a wasteful number, since it uses less digits than its factorization.

2165612052150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117377406 (or 117377398 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The spelling of 2165612052150 in words is "two trillion, one hundred sixty-five billion, six hundred twelve million, fifty-two thousand, one hundred fifty".