66896179200 has 468 divisors, whose sum is σ = 247969091760. Its totient is φ = 17216962560.

The previous prime is 66896179193. The next prime is 66896179211. The reversal of 66896179200 is 297169866.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 26725149 + ... + 26727651.

Almost surely, 2^66896179200 is an apocalyptic number.

66896179200 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 66896179200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123984545880).

66896179200 is an abundant number, since it is smaller than the sum of its proper divisors (181072912560).

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

66896179200 is a wasteful number, since it uses less digits than its factorization.

66896179200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2572 (or 2542 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 66896179200 in words is "sixty-six billion, eight hundred ninety-six million, one hundred seventy-nine thousand, two hundred".