165077089884 has 168 divisors, whose sum is σ = 524123859168. Its totient is φ = 44390384640.

The previous prime is 165077089823. The next prime is 165077089897. The reversal of 165077089884 is 488980770561.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

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 55 ways as a sum of consecutive naturals, for example, 109144 + ... + 584864.

It is an arithmetic number, because the mean of its divisors is an integer number (3119784876).

Almost surely, 2^165077089884 is an apocalyptic number.

165077089884 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165077089884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262061929584).

165077089884 is an abundant number, since it is smaller than the sum of its proper divisors (359046769284).

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

165077089884 is a wasteful number, since it uses less digits than its factorization.

165077089884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475767 (or 475750 counting only the distinct ones).

The product of its (nonzero) digits is 27095040, while the sum is 63.

The spelling of 165077089884 in words is "one hundred sixty-five billion, seventy-seven million, eighty-nine thousand, eight hundred eighty-four".