2680155960 has 128 divisors (see below), whose sum is σ = 8831808000. Its totient is φ = 647640576.

The previous prime is 2680155953. The next prime is 2680155967. The reversal of 2680155960 is 695510862.

It is an interprime number because it is at equal distance from previous prime (2680155953) and next prime (2680155967).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2680155967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26886 + ... + 77994.

It is an arithmetic number, because the mean of its divisors is an integer number (68998500).

Almost surely, 2^2680155960 is an apocalyptic number.

2680155960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2680155960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4415904000).

2680155960 is an abundant number, since it is smaller than the sum of its proper divisors (6151652040).

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

2680155960 is a wasteful number, since it uses less digits than its factorization.

2680155960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51165 (or 51161 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 42.

The square root of 2680155960 is about 51770.2227153795. Note that the first 3 decimals coincide. The cubic root of 2680155960 is about 1389.0568554999.

The spelling of 2680155960 in words is "two billion, six hundred eighty million, one hundred fifty-five thousand, nine hundred sixty".