66141602 has 4 divisors (see below), whose sum is σ = 99212406. Its totient is φ = 33070800.

The previous prime is 66141587. The next prime is 66141613. The reversal of 66141602 is 20614166.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 37100281 + 29041321 = 6091^2 + 5389^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16535399 + ... + 16535402.

Almost surely, 2^66141602 is an apocalyptic number.

66141602 is a deficient number, since it is larger than the sum of its proper divisors (33070804).

66141602 is a wasteful number, since it uses less digits than its factorization.

66141602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33070803.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 66141602 is about 8132.7487358211. The cubic root of 66141602 is about 404.4128095910.

Adding to 66141602 its reverse (20614166), we get a palindrome (86755768).

The spelling of 66141602 in words is "sixty-six million, one hundred forty-one thousand, six hundred two".