165541548480 has 448 divisors, whose sum is σ = 659000033280. Its totient is φ = 34203340800.

The previous prime is 165541548461. The next prime is 165541548547. The reversal of 165541548480 is 84845145561.

It is a tau number, because it is divible by the number of its divisors (448).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13225425 + ... + 13237935.

Almost surely, 2^165541548480 is an apocalyptic number.

165541548480 is a gapful number since it is divisible by the number (10) 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 165541548480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329500016640).

165541548480 is an abundant number, since it is smaller than the sum of its proper divisors (493458484800).

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

165541548480 is a wasteful number, since it uses less digits than its factorization.

165541548480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12728 (or 12718 counting only the distinct ones).

The product of its (nonzero) digits is 3072000, while the sum is 51.

The spelling of 165541548480 in words is "one hundred sixty-five billion, five hundred forty-one million, five hundred forty-eight thousand, four hundred eighty".