2616520816 has 60 divisors (see below), whose sum is σ = 6350838312. Its totient is φ = 1035103104.

The previous prime is 2616520811. The next prime is 2616520817. The reversal of 2616520816 is 6180256162.

It is a super-2 number, since 2×2616520816² = 13692362361122611712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2616520811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118170 + ... + 138553.

Almost surely, 2^2616520816 is an apocalyptic number.

2616520816 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2616520816 is an abundant number, since it is smaller than the sum of its proper divisors (3734317496).

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

2616520816 is a wasteful number, since it uses less digits than its factorization.

2616520816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256758 (or 256745 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 2616520816 is about 51151.9385360907. The cubic root of 2616520816 is about 1377.9751891910.

Adding to 2616520816 its reverse (6180256162), we get a palindrome (8796776978).

The spelling of 2616520816 in words is "two billion, six hundred sixteen million, five hundred twenty thousand, eight hundred sixteen".