165029866500 has 48 divisors (see below), whose sum is σ = 480566975616. Its totient is φ = 44007964000.

The previous prime is 165029866489. The next prime is 165029866541. The reversal of 165029866500 is 5668920561.

It is a self number, because there is not a number n which added to its sum of digits gives 165029866500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55008456 + ... + 55011455.

It is an arithmetic number, because the mean of its divisors is an integer number (10011811992).

Almost surely, 2^165029866500 is an apocalyptic number.

165029866500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165029866500 is an abundant number, since it is smaller than the sum of its proper divisors (315537109116).

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

165029866500 is a wasteful number, since it uses less digits than its factorization.

165029866500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110019933 (or 110019921 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 48.

The spelling of 165029866500 in words is "one hundred sixty-five billion, twenty-nine million, eight hundred sixty-six thousand, five hundred".