2164135634522 has 4 divisors (see below), whose sum is σ = 3246203451786. Its totient is φ = 1082067817260.

The previous prime is 2164135634501. The next prime is 2164135634611. The reversal of 2164135634522 is 2254365314612.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2022849108361 + 141286526161 = 1422269^2 + 375881^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 541033908629 + ... + 541033908632.

Almost surely, 2^{2164135634522} is an apocalyptic number.

2164135634522 is a deficient number, since it is larger than the sum of its proper divisors (1082067817264).

2164135634522 is a wasteful number, since it uses less digits than its factorization.

2164135634522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082067817263.

The product of its digits is 1036800, while the sum is 44.

The spelling of 2164135634522 in words is "two trillion, one hundred sixty-four billion, one hundred thirty-five million, six hundred thirty-four thousand, five hundred twenty-two".