66527479568 has 40 divisors (see below), whose sum is σ = 145150876416. Its totient is φ = 29264284800.

The previous prime is 66527479561. The next prime is 66527479589. The reversal of 66527479568 is 86597472566.

It is a super-3 number, since 3×66527479568³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (66527479561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6091271 + ... + 6102182.

Almost surely, 2^66527479568 is an apocalyptic number.

It is an amenable number.

66527479568 is an abundant number, since it is smaller than the sum of its proper divisors (78623396848).

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

66527479568 is a wasteful number, since it uses less digits than its factorization.

66527479568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12193503 (or 12193497 counting only the distinct ones).

The product of its digits is 152409600, while the sum is 65.

The spelling of 66527479568 in words is "sixty-six billion, five hundred twenty-seven million, four hundred seventy-nine thousand, five hundred sixty-eight".