66504898 has 8 divisors (see below), whose sum is σ = 101124108. Its totient is φ = 32796864.

The previous prime is 66504881. The next prime is 66504899. The reversal of 66504898 is 89840566.

It can be written as a sum of positive squares in 2 ways, for example, as 66471409 + 33489 = 8153^2 + 183^2 .

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 (66504899) 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, 227611 + ... + 227902.

Almost surely, 2^66504898 is an apocalyptic number.

66504898 is a deficient number, since it is larger than the sum of its proper divisors (34619210).

66504898 is a wasteful number, since it uses less digits than its factorization.

66504898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455588.

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 66504898 is about 8155.0535252689. The cubic root of 66504898 is about 405.1518975014.

The spelling of 66504898 in words is "sixty-six million, five hundred four thousand, eight hundred ninety-eight".