165565413700 has 36 divisors (see below), whose sum is σ = 359295167700. Its totient is φ = 66222807040.

The previous prime is 165565413667. The next prime is 165565413701. The reversal of 165565413700 is 7314565561.

165565413700 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 18404178244 + 147161235456 = 135662^2 + 383616^2 .

It is not an unprimeable number, because it can be changed into a prime (165565413701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3138744 + ... + 3191056.

It is an arithmetic number, because the mean of its divisors is an integer number (9980421325).

Almost surely, 2^165565413700 is an apocalyptic number.

165565413700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165565413700 is an abundant number, since it is smaller than the sum of its proper divisors (193729754000).

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

165565413700 is a wasteful number, since it uses less digits than its factorization.

165565413700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83976 (or 83969 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 43.

The spelling of 165565413700 in words is "one hundred sixty-five billion, five hundred sixty-five million, four hundred thirteen thousand, seven hundred".