2066352687 has 42 divisors (see below), whose sum is σ = 3603988248. Its totient is φ = 1180752552.

The previous prime is 2066352661. The next prime is 2066352707. The reversal of 2066352687 is 7862536602.

It is a happy number.

2066352687 is a `hidden beast` number, since 2 + 0 + 6 + 635 + 2 + 6 + 8 + 7 = 666.

It is not a de Polignac number, because 2066352687 - 2⁷ = 2066352559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066352787) by changing a digit.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 6798 + ... + 64644.

It is an arithmetic number, because the mean of its divisors is an integer number (85809244).

Almost surely, 2^2066352687 is an apocalyptic number.

2066352687 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2066352687 is a deficient number, since it is larger than the sum of its proper divisors (1537635561).

2066352687 is an frugal number, since it uses more digits than its factorization.

2066352687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57879 (or 57857 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The square root of 2066352687 is about 45457.1522095258. The cubic root of 2066352687 is about 1273.7029356081.

The spelling of 2066352687 in words is "two billion, sixty-six million, three hundred fifty-two thousand, six hundred eighty-seven".