6542221334 has 16 divisors (see below), whose sum is σ = 10966563216. Its totient is φ = 2901206400.

The previous prime is 6542221327. The next prime is 6542221337. The reversal of 6542221334 is 4331222456.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6542221334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6542221337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3625607 + ... + 3627410.

It is an arithmetic number, because the mean of its divisors is an integer number (685410201).

Almost surely, 2^6542221334 is an apocalyptic number.

6542221334 is a deficient number, since it is larger than the sum of its proper divisors (4424341882).

6542221334 is a wasteful number, since it uses less digits than its factorization.

6542221334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7253071.

The product of its digits is 34560, while the sum is 32.

The square root of 6542221334 is about 80883.9992458335. Note that the first 3 decimals coincide. The cubic root of 6542221334 is about 1870.2876709584.

It can be divided in two parts, 654222 and 1334, that added together give a palindrome (655556).

The spelling of 6542221334 in words is "six billion, five hundred forty-two million, two hundred twenty-one thousand, three hundred thirty-four".