165330439680 has 160 divisors (see below), whose sum is σ = 604046767104. Its totient is φ = 37789802496.

The previous prime is 165330439649. The next prime is 165330439693. The reversal of 165330439680 is 86934033561.

It is a tau number, because it is divible by the number of its divisors (160).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1483912 + ... + 1591431.

Almost surely, 2^165330439680 is an apocalyptic number.

165330439680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165330439680 is an abundant number, since it is smaller than the sum of its proper divisors (438716327424).

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

165330439680 is an equidigital number, since it uses as much as digits as its factorization.

165330439680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3075376 (or 3075360 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 48.

The spelling of 165330439680 in words is "one hundred sixty-five billion, three hundred thirty million, four hundred thirty-nine thousand, six hundred eighty".