1665087795180 has 48 divisors (see below), whose sum is σ = 5180273142240. Its totient is φ = 444023411904.

The previous prime is 1665087795157. The next prime is 1665087795187. The reversal of 1665087795180 is 815977805661.

1665087795180 is a `hidden beast` number, since 1 + 6 + 6 + 508 + 7 + 79 + 51 + 8 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (1665087795187) 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, 1541747419 + ... + 1541748498.

It is an arithmetic number, because the mean of its divisors is an integer number (107922357130).

Almost surely, 2^{1665087795180} is an apocalyptic number.

1665087795180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1665087795180 is an abundant number, since it is smaller than the sum of its proper divisors (3515185347060).

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

1665087795180 is a wasteful number, since it uses less digits than its factorization.

1665087795180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3083495935 (or 3083495927 counting only the distinct ones).

The product of its (nonzero) digits is 25401600, while the sum is 63.

The spelling of 1665087795180 in words is "one trillion, six hundred sixty-five billion, eighty-seven million, seven hundred ninety-five thousand, one hundred eighty".