66672562848 has 48 divisors (see below), whose sum is σ = 176651163360. Its totient is φ = 22016481536.

The previous prime is 66672562843. The next prime is 66672562919. The reversal of 66672562848 is 84826527666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×66672562848² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66672562791 and 66672562800.

It is not an unprimeable number, because it can be changed into a prime (66672562843) 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, 3235083 + ... + 3255626.

It is an arithmetic number, because the mean of its divisors is an integer number (3680232570).

Almost surely, 2^66672562848 is an apocalyptic number.

It is an amenable number.

66672562848 is an abundant number, since it is smaller than the sum of its proper divisors (109978600512).

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

66672562848 is a wasteful number, since it uses less digits than its factorization.

66672562848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6490829 (or 6490821 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 60.

The spelling of 66672562848 in words is "sixty-six billion, six hundred seventy-two million, five hundred sixty-two thousand, eight hundred forty-eight".