66852403200 has 864 divisors, whose sum is σ = 265761896400. Its totient is φ = 16057958400.

The previous prime is 66852403183. The next prime is 66852403217. The reversal of 66852403200 is 230425866.

It is an interprime number because it is at equal distance from previous prime (66852403183) and next prime (66852403217).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 613324746 + ... + 613324854.

Almost surely, 2^66852403200 is an apocalyptic number.

66852403200 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66852403200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132880948200).

66852403200 is an abundant number, since it is smaller than the sum of its proper divisors (198909493200).

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

66852403200 is a wasteful number, since it uses less digits than its factorization.

66852403200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 66852403200 in words is "sixty-six billion, eight hundred fifty-two million, four hundred three thousand, two hundred".