165154145355654 has 64 divisors (see below), whose sum is σ = 407190039836160. Its totient is φ = 43486770205440.

The previous prime is 165154145355637. The next prime is 165154145355707. The reversal of 165154145355654 is 456553541451561.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 243991687 + ... + 244667634.

It is an arithmetic number, because the mean of its divisors is an integer number (6362344372440).

Almost surely, 2^{165154145355654} is an apocalyptic number.

165154145355654 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

165154145355654 is an abundant number, since it is smaller than the sum of its proper divisors (242035894480506).

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

165154145355654 is a wasteful number, since it uses less digits than its factorization.

165154145355654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488659965.

The product of its digits is 108000000, while the sum is 60.

The spelling of 165154145355654 in words is "one hundred sixty-five trillion, one hundred fifty-four billion, one hundred forty-five million, three hundred fifty-five thousand, six hundred fifty-four".