66369179448 has 192 divisors, whose sum is σ = 211341312000. Its totient is φ = 18550160640.

The previous prime is 66369179417. The next prime is 66369179449. The reversal of 66369179448 is 84497196366.

66369179448 is a `hidden beast` number, since 6 + 6 + 36 + 91 + 79 + 448 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66369179449) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24698761 + ... + 24701447.

It is an arithmetic number, because the mean of its divisors is an integer number (1100736000).

Almost surely, 2^66369179448 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 66369179448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105670656000).

66369179448 is an abundant number, since it is smaller than the sum of its proper divisors (144972132552).

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

66369179448 is a wasteful number, since it uses less digits than its factorization.

66369179448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5122 (or 5115 counting only the distinct ones).

The product of its digits is 47029248, while the sum is 63.

The spelling of 66369179448 in words is "sixty-six billion, three hundred sixty-nine million, one hundred seventy-nine thousand, four hundred forty-eight".