165679343426 has 8 divisors (see below), whose sum is σ = 248751496380. Its totient is φ = 82762177968.

The previous prime is 165679343371. The next prime is 165679343429. The reversal of 165679343426 is 624343976561.

It can be written as a sum of positive squares in 2 ways, for example, as 146302425025 + 19376918401 = 382495^2 + 139201^2 .

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

It is not an unprimeable number, because it can be changed into a prime (165679343429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38744201 + ... + 38748476.

Almost surely, 2^165679343426 is an apocalyptic number.

165679343426 is a deficient number, since it is larger than the sum of its proper divisors (83072152954).

165679343426 is a wasteful number, since it uses less digits than its factorization.

165679343426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77493748.

The product of its digits is 19595520, while the sum is 56.

The spelling of 165679343426 in words is "one hundred sixty-five billion, six hundred seventy-nine million, three hundred forty-three thousand, four hundred twenty-six".