165226501223666 has 8 divisors (see below), whose sum is σ = 248006422823040. Its totient is φ = 82557693615988.

The previous prime is 165226501223611. The next prime is 165226501223677. The reversal of 165226501223666 is 666322105622561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×165226501223666² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27778494206 + ... + 27778500153.

It is an arithmetic number, because the mean of its divisors is an integer number (31000802852880).

Almost surely, 2^{165226501223666} is an apocalyptic number.

165226501223666 is a deficient number, since it is larger than the sum of its proper divisors (82779921599374).

165226501223666 is a wasteful number, since it uses less digits than its factorization.

165226501223666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55556995848.

The product of its (nonzero) digits is 9331200, while the sum is 53.

The spelling of 165226501223666 in words is "one hundred sixty-five trillion, two hundred twenty-six billion, five hundred one million, two hundred twenty-three thousand, six hundred sixty-six".