165137645343 has 16 divisors (see below), whose sum is σ = 240967639296. Its totient is φ = 99763659840.

The previous prime is 165137645333. The next prime is 165137645423. The reversal of 165137645343 is 343546731561.

It is not a de Polignac number, because 165137645343 - 2⁶ = 165137645279 is a prime.

It is a super-3 number, since 3×165137645343³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 165137645292 and 165137645301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165137645303) 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, 7983555 + ... + 8004212.

It is an arithmetic number, because the mean of its divisors is an integer number (15060477456).

Almost surely, 2^165137645343 is an apocalyptic number.

165137645343 is a deficient number, since it is larger than the sum of its proper divisors (75829993953).

165137645343 is a wasteful number, since it uses less digits than its factorization.

165137645343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15988094.

The product of its digits is 2721600, while the sum is 48.

The spelling of 165137645343 in words is "one hundred sixty-five billion, one hundred thirty-seven million, six hundred forty-five thousand, three hundred forty-three".