66830948802 has 90 divisors (see below), whose sum is σ = 158195258793. Its totient is φ = 21084767856.

The previous prime is 66830948801. The next prime is 66830948831. The reversal of 66830948802 is 20884903866.

It can be written as a sum of positive squares in 2 ways, for example, as 66760741161 + 70207641 = 258381^2 + 8379^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=182799.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (66830948801) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 62516724 + ... + 62517792.

Almost surely, 2^66830948802 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66830948802

66830948802 is an abundant number, since it is smaller than the sum of its proper divisors (91364309991).

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

66830948802 is an equidigital number, since it uses as much as digits as its factorization.

66830948802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2190 (or 1093 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 54.

The spelling of 66830948802 in words is "sixty-six billion, eight hundred thirty million, nine hundred forty-eight thousand, eight hundred two".