2066687937 has 6 divisors (see below), whose sum is σ = 2985215922. Its totient is φ = 1377791952.

The previous prime is 2066687899. The next prime is 2066687983. The reversal of 2066687937 is 7397866602.

It can be written as a sum of positive squares in only one way, i.e., 1590095376 + 476592561 = 39876^2 + 21831^2 .

It is not a de Polignac number, because 2066687937 - 2⁸ = 2066687681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2066687537) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 114815988 + ... + 114816005.

It is an arithmetic number, because the mean of its divisors is an integer number (497535987).

Almost surely, 2^2066687937 is an apocalyptic number.

It is an amenable number.

2066687937 is a deficient number, since it is larger than the sum of its proper divisors (918527985).

2066687937 is a wasteful number, since it uses less digits than its factorization.

2066687937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229631999 (or 229631996 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 54.

The square root of 2066687937 is about 45460.8395984940. The cubic root of 2066687937 is about 1273.7718147530.

The spelling of 2066687937 in words is "two billion, sixty-six million, six hundred eighty-seven thousand, nine hundred thirty-seven".