165555010606 has 8 divisors (see below), whose sum is σ = 251324474184. Its totient is φ = 81780185880.

The previous prime is 165555010589. The next prime is 165555010637. The reversal of 165555010606 is 606010555561.

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

It is a congruent number.

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, 498659505 + ... + 498659836.

It is an arithmetic number, because the mean of its divisors is an integer number (31415559273).

Almost surely, 2^165555010606 is an apocalyptic number.

165555010606 is a deficient number, since it is larger than the sum of its proper divisors (85769463578).

165555010606 is an equidigital number, since it uses as much as digits as its factorization.

165555010606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997319426.

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 165555010606 in words is "one hundred sixty-five billion, five hundred fifty-five million, ten thousand, six hundred six".