165015165656606 has 8 divisors (see below), whose sum is σ = 253559888691984. Its totient is φ = 80495202759280.

The previous prime is 165015165656591. The next prime is 165015165656609. The reversal of 165015165656606 is 606656561510561.

It is a happy number.

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

It is a super-2 number, since 2×165015165656606² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165015165656609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1006190034410 + ... + 1006190034573.

It is an arithmetic number, because the mean of its divisors is an integer number (31694986086498).

Almost surely, 2^{165015165656606} is an apocalyptic number.

165015165656606 is a deficient number, since it is larger than the sum of its proper divisors (88544723035378).

165015165656606 is a wasteful number, since it uses less digits than its factorization.

165015165656606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012380069026.

The product of its (nonzero) digits is 29160000, while the sum is 59.

The spelling of 165015165656606 in words is "one hundred sixty-five trillion, fifteen billion, one hundred sixty-five million, six hundred fifty-six thousand, six hundred six".