18901859180416 has 16 divisors (see below), whose sum is σ = 37656047586240. Its totient is φ = 9450929590144.

The previous prime is 18901859180377. The next prime is 18901859180419. The reversal of 18901859180416 is 61408195810981.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18901859180419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73835387296 + ... + 73835387551.

It is an arithmetic number, because the mean of its divisors is an integer number (2353502974140).

Almost surely, 2^{18901859180416} is an apocalyptic number.

18901859180416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18901859180416 is a deficient number, since it is larger than the sum of its proper divisors (18754188405824).

18901859180416 is an equidigital number, since it uses as much as digits as its factorization.

18901859180416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147670774861 (or 147670774849 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 61.

The spelling of 18901859180416 in words is "eighteen trillion, nine hundred one billion, eight hundred fifty-nine million, one hundred eighty thousand, four hundred sixteen".