164534253226 has 16 divisors (see below), whose sum is σ = 288618225984. Its totient is φ = 68874803424.

The previous prime is 164534253223. The next prime is 164534253253. The reversal of 164534253226 is 622352435461.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (164534253223) 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, 136655755 + ... + 136656958.

It is an arithmetic number, because the mean of its divisors is an integer number (18038639124).

Almost surely, 2^164534253226 is an apocalyptic number.

164534253226 is a deficient number, since it is larger than the sum of its proper divisors (124083972758).

164534253226 is a wasteful number, since it uses less digits than its factorization.

164534253226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273312765.

The product of its digits is 1036800, while the sum is 43.

Adding to 164534253226 its reverse (622352435461), we get a palindrome (786886688687).

The spelling of 164534253226 in words is "one hundred sixty-four billion, five hundred thirty-four million, two hundred fifty-three thousand, two hundred twenty-six".