2066555215 has 8 divisors (see below), whose sum is σ = 2489018688. Its totient is φ = 1647142560.

The previous prime is 2066555147. The next prime is 2066555291. The reversal of 2066555215 is 5125556602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2066555215 - 2²¹ = 2064458063 is a prime.

It is a Duffinian number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 761212 + ... + 763921.

It is an arithmetic number, because the mean of its divisors is an integer number (311127336).

Almost surely, 2^2066555215 is an apocalyptic number.

2066555215 is a deficient number, since it is larger than the sum of its proper divisors (422463473).

2066555215 is a wasteful number, since it uses less digits than its factorization.

2066555215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1525409.

The product of its (nonzero) digits is 90000, while the sum is 37.

The square root of 2066555215 is about 45459.3798351891. The cubic root of 2066555215 is about 1273.7445471043.

The spelling of 2066555215 in words is "two billion, sixty-six million, five hundred fifty-five thousand, two hundred fifteen".