66011131206192 has 40 divisors (see below), whose sum is σ = 176029683220480. Its totient is φ = 21293913291840.

The previous prime is 66011131206191. The next prime is 66011131206193. The reversal of 66011131206192 is 29160213111066.

It is an interprime number because it is at equal distance from previous prime (66011131206191) and next prime (66011131206193).

It is a self number, because there is not a number n which added to its sum of digits gives 66011131206192.

It is not an unprimeable number, because it can be changed into a prime (66011131206191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22181158192 + ... + 22181161167.

It is an arithmetic number, because the mean of its divisors is an integer number (4400742080512).

Almost surely, 2^{66011131206192} is an apocalyptic number.

66011131206192 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

66011131206192 is an abundant number, since it is smaller than the sum of its proper divisors (110018552014288).

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

66011131206192 is a wasteful number, since it uses less digits than its factorization.

66011131206192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44362319401 (or 44362319395 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 39.

The spelling of 66011131206192 in words is "sixty-six trillion, eleven billion, one hundred thirty-one million, two hundred six thousand, one hundred ninety-two".