66595459850198 has 8 divisors (see below), whose sum is σ = 105150726079320. Its totient is φ = 31545217823760.

The previous prime is 66595459850197. The next prime is 66595459850267. The reversal of 66595459850198 is 89105895459566.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66595459850191) 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, 876256050623 + ... + 876256050698.

It is an arithmetic number, because the mean of its divisors is an integer number (13143840759915).

Almost surely, 2^{66595459850198} is an apocalyptic number.

66595459850198 is a deficient number, since it is larger than the sum of its proper divisors (38555266229122).

66595459850198 is a wasteful number, since it uses less digits than its factorization.

66595459850198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752512101342.

The product of its (nonzero) digits is 4199040000, while the sum is 80.

The spelling of 66595459850198 in words is "sixty-six trillion, five hundred ninety-five billion, four hundred fifty-nine million, eight hundred fifty thousand, one hundred ninety-eight".