18416751850001 has 4 divisors (see below), whose sum is σ = 18518501860404. Its totient is φ = 18315001839600.

The previous prime is 18416751849997. The next prime is 18416751850109. The reversal of 18416751850001 is 10005815761481.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54498435601 + 18362253414400 = 233449^2 + 4285120^2 .

It is a cyclic number.

It is not a de Polignac number, because 18416751850001 - 2² = 18416751849997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18416751850201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50875004930 + ... + 50875005291.

It is an arithmetic number, because the mean of its divisors is an integer number (4629625465101).

Almost surely, 2^{18416751850001} is an apocalyptic number.

It is an amenable number.

18416751850001 is a deficient number, since it is larger than the sum of its proper divisors (101750010403).

18416751850001 is a wasteful number, since it uses less digits than its factorization.

18416751850001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101750010402.

The product of its (nonzero) digits is 268800, while the sum is 47.

The spelling of 18416751850001 in words is "eighteen trillion, four hundred sixteen billion, seven hundred fifty-one million, eight hundred fifty thousand, one".