2001850018501 has 8 divisors (see below), whose sum is σ = 2008649677824. Its totient is φ = 1995057669840.

The previous prime is 2001850018477. The next prime is 2001850018543. The reversal of 2001850018501 is 1058100581002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2001850018501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001850018591) 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, 1278805 + ... + 2374666.

It is an arithmetic number, because the mean of its divisors is an integer number (251081209728).

Almost surely, 2^{2001850018501} is an apocalyptic number.

It is an amenable number.

2001850018501 is a deficient number, since it is larger than the sum of its proper divisors (6799659323).

2001850018501 is a wasteful number, since it uses less digits than its factorization.

2001850018501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3655331.

The product of its (nonzero) digits is 3200, while the sum is 31.

Adding to 2001850018501 its reverse (1058100581002), we get a palindrome (3059950599503).

The spelling of 2001850018501 in words is "two trillion, one billion, eight hundred fifty million, eighteen thousand, five hundred one".