165544054240506 has 16 divisors (see below), whose sum is σ = 331145065046304. Its totient is φ = 55171858652624.

The previous prime is 165544054240493. The next prime is 165544054240519. The reversal of 165544054240506 is 605042450445561.

It is an interprime number because it is at equal distance from previous prime (165544054240493) and next prime (165544054240519).

It is a super-3 number, since 3×165544054240506³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2373152436 + ... + 2373222191.

It is an arithmetic number, because the mean of its divisors is an integer number (20696566565394).

Almost surely, 2^{165544054240506} is an apocalyptic number.

165544054240506 is an abundant number, since it is smaller than the sum of its proper divisors (165601010805798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165544054240506 is a wasteful number, since it uses less digits than its factorization.

165544054240506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4746380445.

The product of its (nonzero) digits is 11520000, while the sum is 51.

The spelling of 165544054240506 in words is "one hundred sixty-five trillion, five hundred forty-four billion, fifty-four million, two hundred forty thousand, five hundred six".