165155930426 has 8 divisors (see below), whose sum is σ = 250287853620. Its totient is φ = 81726645888.

The previous prime is 165155930417. The next prime is 165155930431. The reversal of 165155930426 is 624039551561.

It can be written as a sum of positive squares in 2 ways, for example, as 150959446225 + 14196484201 = 388535^2 + 119149^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 425659421 + ... + 425659808.

Almost surely, 2^165155930426 is an apocalyptic number.

165155930426 is a deficient number, since it is larger than the sum of its proper divisors (85131923194).

165155930426 is an equidigital number, since it uses as much as digits as its factorization.

165155930426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851319328.

The product of its (nonzero) digits is 972000, while the sum is 47.

The spelling of 165155930426 in words is "one hundred sixty-five billion, one hundred fifty-five million, nine hundred thirty thousand, four hundred twenty-six".