165640314350 has 96 divisors (see below), whose sum is σ = 360323277120. Its totient is φ = 55474698240.

The previous prime is 165640314311. The next prime is 165640314353. The reversal of 165640314350 is 53413046561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165640314353) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4228454 + ... + 4267446.

It is an arithmetic number, because the mean of its divisors is an integer number (3753367470).

Almost surely, 2^165640314350 is an apocalyptic number.

165640314350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165640314350 is an abundant number, since it is smaller than the sum of its proper divisors (194682962770).

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

165640314350 is a wasteful number, since it uses less digits than its factorization.

165640314350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39294 (or 39289 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 165640314350 in words is "one hundred sixty-five billion, six hundred forty million, three hundred fourteen thousand, three hundred fifty".