165409281648010 has 32 divisors (see below), whose sum is σ = 308004306105600. Its totient is φ = 63882036052800.

The previous prime is 165409281648007. The next prime is 165409281648011. The reversal of 165409281648010 is 10846182904561.

It is not an unprimeable number, because it can be changed into a prime (165409281648011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211178881 + ... + 211960699.

It is an arithmetic number, because the mean of its divisors is an integer number (9625134565800).

Almost surely, 2^{165409281648010} is an apocalyptic number.

165409281648010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165409281648010 is a deficient number, since it is larger than the sum of its proper divisors (142595024457590).

165409281648010 is a wasteful number, since it uses less digits than its factorization.

165409281648010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511406.

The product of its (nonzero) digits is 3317760, while the sum is 55.

The spelling of 165409281648010 in words is "one hundred sixty-five trillion, four hundred nine billion, two hundred eighty-one million, six hundred forty-eight thousand, ten".