165545097600 has 96 divisors (see below), whose sum is σ = 545264196840. Its totient is φ = 44145356800.

The previous prime is 165545097583. The next prime is 165545097607. The reversal of 165545097600 is 6790545561.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 165545097600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165545097607) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8612541 + ... + 8631740.

Almost surely, 2^165545097600 is an apocalyptic number.

165545097600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165545097600 is an abundant number, since it is smaller than the sum of its proper divisors (379719099240).

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

165545097600 is a wasteful number, since it uses less digits than its factorization.

165545097600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17244308 (or 17244291 counting only the distinct ones).

The product of its (nonzero) digits is 1134000, while the sum is 48.

The spelling of 165545097600 in words is "one hundred sixty-five billion, five hundred forty-five million, ninety-seven thousand, six hundred".