2164251240351 has 24 divisors (see below), whose sum is σ = 3128742751680. Its totient is φ = 1441633729536.

The previous prime is 2164251240341. The next prime is 2164251240353. The reversal of 2164251240351 is 1530421524612.

2164251240351 is a `hidden beast` number, since 2 + 1 + 64 + 2 + 5 + 1 + 240 + 351 = 666.

It is not a de Polignac number, because 2164251240351 - 2¹³ = 2164251232159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2164251240353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55807770 + ... + 55846536.

It is an arithmetic number, because the mean of its divisors is an integer number (130364281320).

Almost surely, 2^{2164251240351} is an apocalyptic number.

2164251240351 is a deficient number, since it is larger than the sum of its proper divisors (964491511329).

2164251240351 is a wasteful number, since it uses less digits than its factorization.

2164251240351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43775 (or 43772 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 2164251240351 its reverse (1530421524612), we get a palindrome (3694672764963).

The spelling of 2164251240351 in words is "two trillion, one hundred sixty-four billion, two hundred fifty-one million, two hundred forty thousand, three hundred fifty-one".