66773196254 has 8 divisors (see below), whose sum is σ = 100198192320. Its totient is φ = 33373798816.

The previous prime is 66773196239. The next prime is 66773196257. The reversal of 66773196254 is 45269137766.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 66773196254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66773196257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6393134 + ... + 6403569.

It is an arithmetic number, because the mean of its divisors is an integer number (12524774040).

Almost surely, 2^66773196254 is an apocalyptic number.

66773196254 is a deficient number, since it is larger than the sum of its proper divisors (33424996066).

66773196254 is a wasteful number, since it uses less digits than its factorization.

66773196254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12799314.

The product of its digits is 11430720, while the sum is 56.

The spelling of 66773196254 in words is "sixty-six billion, seven hundred seventy-three million, one hundred ninety-six thousand, two hundred fifty-four".