66102010194 has 16 divisors (see below), whose sum is σ = 144222567840. Its totient is φ = 20030912160.

The previous prime is 66102010153. The next prime is 66102010199. The reversal of 66102010194 is 49101020166.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (66102010199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500772739 + ... + 500772870.

It is an arithmetic number, because the mean of its divisors is an integer number (9013910490).

Almost surely, 2^66102010194 is an apocalyptic number.

66102010194 is an abundant number, since it is smaller than the sum of its proper divisors (78120557646).

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

66102010194 is a wasteful number, since it uses less digits than its factorization.

66102010194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001545625.

The product of its (nonzero) digits is 2592, while the sum is 30.

The spelling of 66102010194 in words is "sixty-six billion, one hundred two million, ten thousand, one hundred ninety-four".