66313802 has 4 divisors (see below), whose sum is σ = 99470706. Its totient is φ = 33156900.

The previous prime is 66313717. The next prime is 66313823. The reversal of 66313802 is 20831366.

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., 65918161 + 395641 = 8119^2 + 629^2 .

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, 16578449 + ... + 16578452.

Almost surely, 2^66313802 is an apocalyptic number.

66313802 is a deficient number, since it is larger than the sum of its proper divisors (33156904).

66313802 is a wasteful number, since it uses less digits than its factorization.

66313802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33156903.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 66313802 is about 8143.3286805827. The cubic root of 66313802 is about 404.7634690601.

The spelling of 66313802 in words is "sixty-six million, three hundred thirteen thousand, eight hundred two".