66475059200 has 576 divisors, whose sum is σ = 195450615360. Its totient is φ = 22151168000.

The previous prime is 66475059193. The next prime is 66475059227. The reversal of 66475059200 is 295057466.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 507443135 + ... + 507443265.

It is an arithmetic number, because the mean of its divisors is an integer number (339323985).

Almost surely, 2^66475059200 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66475059200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97725307680).

66475059200 is an abundant number, since it is smaller than the sum of its proper divisors (128975556160).

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

66475059200 is a wasteful number, since it uses less digits than its factorization.

66475059200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 44.

The spelling of 66475059200 in words is "sixty-six billion, four hundred seventy-five million, fifty-nine thousand, two hundred".