165514554149 has 16 divisors (see below), whose sum is σ = 198890588160. Its totient is φ = 134665468080.

The previous prime is 165514554143. The next prime is 165514554187. The reversal of 165514554149 is 941455415561.

It is a cyclic number.

It is not a de Polignac number, because 165514554149 - 2⁴ = 165514554133 is a prime.

It is a super-2 number, since 2×165514554149² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165514554097 and 165514554106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165514554143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3902729 + ... + 3944910.

It is an arithmetic number, because the mean of its divisors is an integer number (12430661760).

Almost surely, 2^165514554149 is an apocalyptic number.

It is an amenable number.

165514554149 is a deficient number, since it is larger than the sum of its proper divisors (33376034011).

165514554149 is a wasteful number, since it uses less digits than its factorization.

165514554149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7847800.

The product of its digits is 2160000, while the sum is 50.

The spelling of 165514554149 in words is "one hundred sixty-five billion, five hundred fourteen million, five hundred fifty-four thousand, one hundred forty-nine".