66231802 has 16 divisors (see below), whose sum is σ = 122274432. Its totient is φ = 26201520.

The previous prime is 66231799. The next prime is 66231811. The reversal of 66231802 is 20813266.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181774 + ... + 182137.

It is an arithmetic number, because the mean of its divisors is an integer number (7642152).

Almost surely, 2^66231802 is an apocalyptic number.

66231802 is a deficient number, since it is larger than the sum of its proper divisors (56042630).

66231802 is a wasteful number, since it uses less digits than its factorization.

66231802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363933.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 66231802 is about 8138.2923270180. The cubic root of 66231802 is about 404.5965641654.

The spelling of 66231802 in words is "sixty-six million, two hundred thirty-one thousand, eight hundred two".