165505000560 has 80 divisors (see below), whose sum is σ = 513340242336. Its totient is φ = 44111033344.

The previous prime is 165505000541. The next prime is 165505000567. The reversal of 165505000560 is 65000505561.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165505000567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266782 + ... + 634178.

Almost surely, 2^165505000560 is an apocalyptic number.

165505000560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165505000560 is an abundant number, since it is smaller than the sum of its proper divisors (347835241776).

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

165505000560 is a wasteful number, since it uses less digits than its factorization.

165505000560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369290 (or 369284 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 33.

The spelling of 165505000560 in words is "one hundred sixty-five billion, five hundred five million, five hundred sixty", and thus it is an aban number.