13180501985 has 8 divisors (see below), whose sum is σ = 18076117056. Its totient is φ = 9038058480.

The previous prime is 13180501949. The next prime is 13180501987. The reversal of 13180501985 is 58910508131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13180501985 - 2⁶ = 13180501921 is a prime.

It is a super-3 number, since 3×13180501985³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13180501987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188292851 + ... + 188292920.

It is an arithmetic number, because the mean of its divisors is an integer number (2259514632).

Almost surely, 2^13180501985 is an apocalyptic number.

It is an amenable number.

13180501985 is a deficient number, since it is larger than the sum of its proper divisors (4895615071).

13180501985 is an equidigital number, since it uses as much as digits as its factorization.

13180501985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376585783.

The product of its (nonzero) digits is 43200, while the sum is 41.

The spelling of 13180501985 in words is "thirteen billion, one hundred eighty million, five hundred one thousand, nine hundred eighty-five".