165706131107064 has 32 divisors (see below), whose sum is σ = 414265646448000. Its totient is φ = 55235334544992.

The previous prime is 165706131107053. The next prime is 165706131107081. The reversal of 165706131107064 is 460701131607561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52977927 + ... + 56018505.

It is an arithmetic number, because the mean of its divisors is an integer number (12945801451500).

Almost surely, 2^{165706131107064} is an apocalyptic number.

It is an amenable number.

165706131107064 is an abundant number, since it is smaller than the sum of its proper divisors (248559515340936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165706131107064 is a wasteful number, since it uses less digits than its factorization.

165706131107064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5311347 (or 5311343 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 48.

The spelling of 165706131107064 in words is "one hundred sixty-five trillion, seven hundred six billion, one hundred thirty-one million, one hundred seven thousand, sixty-four".