2601015816 has 128 divisors (see below), whose sum is σ = 7728537600. Its totient is φ = 713802240.

The previous prime is 2601015803. The next prime is 2601015817. The reversal of 2601015816 is 6185101062.

It is not an unprimeable number, because it can be changed into a prime (2601015817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 722116 + ... + 725708.

It is an arithmetic number, because the mean of its divisors is an integer number (60379200).

Almost surely, 2^2601015816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2601015816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3864268800).

2601015816 is an abundant number, since it is smaller than the sum of its proper divisors (5127521784).

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

2601015816 is a wasteful number, since it uses less digits than its factorization.

2601015816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3779 (or 3775 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 2601015816 is about 51000.1550585878. The cubic root of 2601015816 is about 1375.2479228542.

Adding to 2601015816 its reverse (6185101062), we get a palindrome (8786116878).

The spelling of 2601015816 in words is "two billion, six hundred one million, fifteen thousand, eight hundred sixteen".