662807222538 has 16 divisors (see below), whose sum is σ = 1357946505216. Its totient is φ = 215547064160.

The previous prime is 662807222531. The next prime is 662807222551. The reversal of 662807222538 is 835222708266.

It is a super-2 number, since 2×662807222538² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (662807222531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1347168906 + ... + 1347169397.

It is an arithmetic number, because the mean of its divisors is an integer number (84871656576).

Almost surely, 2^662807222538 is an apocalyptic number.

662807222538 is an abundant number, since it is smaller than the sum of its proper divisors (695139282678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

662807222538 is a wasteful number, since it uses less digits than its factorization.

662807222538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2694338349.

The product of its (nonzero) digits is 3870720, while the sum is 51.

The spelling of 662807222538 in words is "six hundred sixty-two billion, eight hundred seven million, two hundred twenty-two thousand, five hundred thirty-eight".