66246646060 has 48 divisors (see below), whose sum is σ = 161004533760. Its totient is φ = 22425624000.

The previous prime is 66246646021. The next prime is 66246646069. The reversal of 66246646060 is 6064664266.

It is a super-2 number, since 2×66246646060² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66246646060.

It is not an unprimeable number, because it can be changed into a prime (66246646069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2983816 + ... + 3005935.

It is an arithmetic number, because the mean of its divisors is an integer number (3354261120).

Almost surely, 2^66246646060 is an apocalyptic number.

It is an amenable number.

66246646060 is an abundant number, since it is smaller than the sum of its proper divisors (94757887700).

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

66246646060 is a wasteful number, since it uses less digits than its factorization.

66246646060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5989846 (or 5989844 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 46.

The spelling of 66246646060 in words is "sixty-six billion, two hundred forty-six million, six hundred forty-six thousand, sixty".