2163213252145 has 16 divisors (see below), whose sum is σ = 2839730970240. Its totient is φ = 1568863686400.

The previous prime is 2163213252061. The next prime is 2163213252149. The reversal of 2163213252145 is 5412523123612.

It is a happy number.

It is not a de Polignac number, because 2163213252145 - 2⁷ = 2163213252017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2163213252149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54759016 + ... + 54798505.

It is an arithmetic number, because the mean of its divisors is an integer number (177483185640).

Almost surely, 2^{2163213252145} is an apocalyptic number.

It is an amenable number.

2163213252145 is a deficient number, since it is larger than the sum of its proper divisors (676517718095).

2163213252145 is a wasteful number, since it uses less digits than its factorization.

2163213252145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109557896.

The product of its digits is 86400, while the sum is 37.

Adding to 2163213252145 its reverse (5412523123612), we get a palindrome (7575736375757).

The spelling of 2163213252145 in words is "two trillion, one hundred sixty-three billion, two hundred thirteen million, two hundred fifty-two thousand, one hundred forty-five".