66541048208 has 40 divisors (see below), whose sum is σ = 137343813600. Its totient is φ = 31139679744.

The previous prime is 66541048207. The next prime is 66541048213. The reversal of 66541048208 is 80284014566.

It is a happy number.

It is a super-2 number, since 2×66541048208² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66541048207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1293353 + ... + 1343816.

It is an arithmetic number, because the mean of its divisors is an integer number (3433595340).

Almost surely, 2^66541048208 is an apocalyptic number.

It is an amenable number.

66541048208 is an abundant number, since it is smaller than the sum of its proper divisors (70802765392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66541048208 is a wasteful number, since it uses less digits than its factorization.

66541048208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2637279 (or 2637273 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 44.

The spelling of 66541048208 in words is "sixty-six billion, five hundred forty-one million, forty-eight thousand, two hundred eight".