2721620366 has 16 divisors (see below), whose sum is σ = 4099455360. Its totient is φ = 1355147640.

The previous prime is 2721620353. The next prime is 2721620393. The reversal of 2721620366 is 6630261272.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526205 + ... + 531351.

It is an arithmetic number, because the mean of its divisors is an integer number (256215960).

Almost surely, 2^2721620366 is an apocalyptic number.

2721620366 is a deficient number, since it is larger than the sum of its proper divisors (1377834994).

2721620366 is a wasteful number, since it uses less digits than its factorization.

2721620366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6199.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 2721620366 is about 52169.1514786277. The cubic root of 2721620366 is about 1396.1835454458.

The spelling of 2721620366 in words is "two billion, seven hundred twenty-one million, six hundred twenty thousand, three hundred sixty-six".