66522802 has 8 divisors (see below), whose sum is σ = 105653916. Its totient is φ = 31304832.

The previous prime is 66522793. The next prime is 66522803. The reversal of 66522802 is 20822566.

It can be written as a sum of positive squares in 2 ways, for example, as 63059481 + 3463321 = 7941^2 + 1861^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (66522803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 978243 + ... + 978310.

Almost surely, 2^66522802 is an apocalyptic number.

66522802 is a deficient number, since it is larger than the sum of its proper divisors (39131114).

66522802 is a wasteful number, since it uses less digits than its factorization.

66522802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1956572.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 66522802 is about 8156.1511756465. The cubic root of 66522802 is about 405.1882516594.

The spelling of 66522802 in words is "sixty-six million, five hundred twenty-two thousand, eight hundred two".