2215144161045 has 16 divisors (see below), whose sum is σ = 3938034064320. Its totient is φ = 1181410219152.

The previous prime is 2215144161037. The next prime is 2215144161089. The reversal of 2215144161045 is 5401614415122.

2215144161045 is a `hidden beast` number, since 2 + 2 + 1 + 514 + 41 + 61 + 0 + 45 = 666.

It is not a de Polignac number, because 2215144161045 - 2³ = 2215144161037 is a prime.

It is a super-3 number, since 3×2215144161045³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8204237499 + ... + 8204237768.

It is an arithmetic number, because the mean of its divisors is an integer number (246127129020).

Almost surely, 2^{2215144161045} is an apocalyptic number.

It is an amenable number.

2215144161045 is a deficient number, since it is larger than the sum of its proper divisors (1722889903275).

2215144161045 is a wasteful number, since it uses less digits than its factorization.

2215144161045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16408475281 (or 16408475275 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

Adding to 2215144161045 its reverse (5401614415122), we get a palindrome (7616758576167).

The spelling of 2215144161045 in words is "two trillion, two hundred fifteen billion, one hundred forty-four million, one hundred sixty-one thousand, forty-five".