6181001816 has 32 divisors (see below), whose sum is σ = 12651249600. Its totient is φ = 2807703840.

The previous prime is 6181001809. The next prime is 6181001861.

6181001816 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116711 + ... + 161193.

It is an arithmetic number, because the mean of its divisors is an integer number (395351550).

Almost surely, 2^6181001816 is an apocalyptic number.

It is an amenable number.

6181001816 is an abundant number, since it is smaller than the sum of its proper divisors (6470247784).

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

6181001816 is a wasteful number, since it uses less digits than its factorization.

6181001816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46079 (or 46075 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 32.

The square root of 6181001816 is about 78619.3475933246. The cubic root of 6181001816 is about 1835.2122116460.

It can be divided in two parts, 618100 and 1816, that added together give a palindrome (619916).

The spelling of 6181001816 in words is "six billion, one hundred eighty-one million, one thousand, eight hundred sixteen".