165214625465 has 16 divisors (see below), whose sum is σ = 199127280000. Its totient is φ = 131592142080.

The previous prime is 165214625447. The next prime is 165214625489. The reversal of 165214625465 is 564526412561.

It is not a de Polignac number, because 165214625465 - 2¹⁰ = 165214624441 is a prime.

It is an unprimeable number.

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, 6010082 + ... + 6037508.

It is an arithmetic number, because the mean of its divisors is an integer number (12445455000).

Almost surely, 2^165214625465 is an apocalyptic number.

It is an amenable number.

165214625465 is a deficient number, since it is larger than the sum of its proper divisors (33912654535).

165214625465 is a wasteful number, since it uses less digits than its factorization.

165214625465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32672.

The product of its digits is 1728000, while the sum is 47.

The spelling of 165214625465 in words is "one hundred sixty-five billion, two hundred fourteen million, six hundred twenty-five thousand, four hundred sixty-five".