2066656415 has 8 divisors (see below), whose sum is σ = 2480446800. Its totient is φ = 1653019072.

The previous prime is 2066656399. The next prime is 2066656453. The reversal of 2066656415 is 5146566602.

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

It is a cyclic number.

It is not a de Polignac number, because 2066656415 - 2⁴ = 2066656399 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6089 + ... + 64578.

It is an arithmetic number, because the mean of its divisors is an integer number (310055850).

Almost surely, 2^2066656415 is an apocalyptic number.

2066656415 is a deficient number, since it is larger than the sum of its proper divisors (413790385).

2066656415 is an equidigital number, since it uses as much as digits as its factorization.

2066656415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76521.

The product of its (nonzero) digits is 259200, while the sum is 41.

The square root of 2066656415 is about 45460.4929031791. The cubic root of 2066656415 is about 1273.7653386843.

The spelling of 2066656415 in words is "two billion, sixty-six million, six hundred fifty-six thousand, four hundred fifteen".