165234206634 has 24 divisors (see below), whose sum is σ = 384422440608. Its totient is φ = 47209773240.

The previous prime is 165234206623. The next prime is 165234206639. The reversal of 165234206634 is 436602432561.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (165234206639) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 281010262 + ... + 281010849.

It is an arithmetic number, because the mean of its divisors is an integer number (16017601692).

Almost surely, 2^165234206634 is an apocalyptic number.

165234206634 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

165234206634 is an abundant number, since it is smaller than the sum of its proper divisors (219188233974).

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

165234206634 is a wasteful number, since it uses less digits than its factorization.

165234206634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562021130 (or 562021123 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 42.

The spelling of 165234206634 in words is "one hundred sixty-five billion, two hundred thirty-four million, two hundred six thousand, six hundred thirty-four".