2066702157 has 24 divisors (see below), whose sum is σ = 3217347224. Its totient is φ = 1270836864.

The previous prime is 2066702153. The next prime is 2066702159. The reversal of 2066702157 is 7512076602.

It can be written as a sum of positive squares in 4 ways, for example, as 105452361 + 1961249796 = 10269^2 + 44286^2 .

It is not a de Polignac number, because 2066702157 - 2² = 2066702153 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066702153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 163923 + ... + 176079.

Almost surely, 2^2066702157 is an apocalyptic number.

It is an amenable number.

2066702157 is a deficient number, since it is larger than the sum of its proper divisors (1150645067).

2066702157 is a wasteful number, since it uses less digits than its factorization.

2066702157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13629 (or 13626 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 2066702157 is about 45460.9959965683. The cubic root of 2066702157 is about 1273.7747361735.

Adding to 2066702157 its reverse (7512076602), we get a palindrome (9578778759).

The spelling of 2066702157 in words is "two billion, sixty-six million, seven hundred two thousand, one hundred fifty-seven".