165366434 has 16 divisors (see below), whose sum is σ = 252769920. Its totient is φ = 81123120.

The previous prime is 165366427. The next prime is 165366437. The reversal of 165366434 is 434663561.

165366434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (165366437) 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, 22544 + ... + 28964.

It is an arithmetic number, because the mean of its divisors is an integer number (15798120).

Almost surely, 2^165366434 is an apocalyptic number.

165366434 is a deficient number, since it is larger than the sum of its proper divisors (87403486).

165366434 is a wasteful number, since it uses less digits than its factorization.

165366434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6665.

The product of its digits is 155520, while the sum is 38.

The square root of 165366434 is about 12859.4880924553. The cubic root of 165366434 is about 548.8863792082.

The spelling of 165366434 in words is "one hundred sixty-five million, three hundred sixty-six thousand, four hundred thirty-four".