165145661506614 has 16 divisors (see below), whose sum is σ = 330292231874352. Its totient is φ = 55048402358688.

The previous prime is 165145661506613. The next prime is 165145661506663. The reversal of 165145661506614 is 416605166541561.

It is a happy number.

165145661506614 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165145661506613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35495589 + ... + 39877664.

It is an arithmetic number, because the mean of its divisors is an integer number (20643264492147).

Almost surely, 2^{165145661506614} is an apocalyptic number.

165145661506614 is an abundant number, since it is smaller than the sum of its proper divisors (165146570367738).

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

165145661506614 is a wasteful number, since it uses less digits than its factorization.

165145661506614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75738431.

The product of its (nonzero) digits is 15552000, while the sum is 57.

The spelling of 165145661506614 in words is "one hundred sixty-five trillion, one hundred forty-five billion, six hundred sixty-one million, five hundred six thousand, six hundred fourteen".