166702002037 has 4 divisors (see below), whose sum is σ = 168985591180. Its totient is φ = 164418412896.

The previous prime is 166702002007. The next prime is 166702002043. The reversal of 166702002037 is 730200207661.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 730200207661 = 12041 ⋅60642821.

It can be written as a sum of positive squares in 2 ways, for example, as 78916608241 + 87785393796 = 280921^2 + 296286^2 .

It is a cyclic number.

It is not a de Polignac number, because 166702002037 - 2²⁷ = 166567784309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166702001993 and 166702002011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166702002007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1141794462 + ... + 1141794607.

It is an arithmetic number, because the mean of its divisors is an integer number (42246397795).

Almost surely, 2^166702002037 is an apocalyptic number.

It is an amenable number.

166702002037 is a deficient number, since it is larger than the sum of its proper divisors (2283589143).

166702002037 is an equidigital number, since it uses as much as digits as its factorization.

166702002037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2283589142.

The product of its (nonzero) digits is 21168, while the sum is 34.

Adding to 166702002037 its reverse (730200207661), we get a palindrome (896902209698).

The spelling of 166702002037 in words is "one hundred sixty-six billion, seven hundred two million, two thousand, thirty-seven".