2720816955 has 24 divisors (see below), whose sum is σ = 4720781520. Its totient is φ = 1449656640.

The previous prime is 2720816927. The next prime is 2720816999. The reversal of 2720816955 is 5596180272.

It is not a de Polignac number, because 2720816955 - 2⁷ = 2720816827 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2720816955.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 16336 + ... + 75554.

It is an arithmetic number, because the mean of its divisors is an integer number (196699230).

Almost surely, 2^2720816955 is an apocalyptic number.

2720816955 is a deficient number, since it is larger than the sum of its proper divisors (1999964565).

2720816955 is a wasteful number, since it uses less digits than its factorization.

2720816955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60251 (or 60248 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 2720816955 is about 52161.4508521379. The cubic root of 2720816955 is about 1396.0461494022.

The spelling of 2720816955 in words is "two billion, seven hundred twenty million, eight hundred sixteen thousand, nine hundred fifty-five".