165124397541 has 8 divisors (see below), whose sum is σ = 220493007040. Its totient is φ = 109919359872.

The previous prime is 165124397533. The next prime is 165124397591. The reversal of 165124397541 is 145793421561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 165124397541 - 2³ = 165124397533 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165124397521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40890601 + ... + 40894638.

It is an arithmetic number, because the mean of its divisors is an integer number (27561625880).

Almost surely, 2^165124397541 is an apocalyptic number.

It is an amenable number.

165124397541 is a deficient number, since it is larger than the sum of its proper divisors (55368609499).

165124397541 is an equidigital number, since it uses as much as digits as its factorization.

165124397541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81785915.

The product of its digits is 907200, while the sum is 48.

The spelling of 165124397541 in words is "one hundred sixty-five billion, one hundred twenty-four million, three hundred ninety-seven thousand, five hundred forty-one".