266402102 has 4 divisors (see below), whose sum is σ = 399603156. Its totient is φ = 133201050.

The previous prime is 266402089. The next prime is 266402111. The reversal of 266402102 is 201204662.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 201204662 = 2 ⋅100602331.

It is a super-3 number, since 3×266402102³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66600524 + ... + 66600527.

It is an arithmetic number, because the mean of its divisors is an integer number (99900789).

Almost surely, 2^266402102 is an apocalyptic number.

266402102 is a deficient number, since it is larger than the sum of its proper divisors (133201054).

266402102 is a wasteful number, since it uses less digits than its factorization.

266402102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133201053.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 266402102 is about 16321.8290029028. The cubic root of 266402102 is about 643.4466573226.

Adding to 266402102 its reverse (201204662), we get a palindrome (467606764).

The spelling of 266402102 in words is "two hundred sixty-six million, four hundred two thousand, one hundred two".