472743311247666 has 48 divisors (see below), whose sum is σ = 1038707619475968. Its totient is φ = 155361052392000.

The previous prime is 472743311247661. The next prime is 472743311247677. The reversal of 472743311247666 is 666742113347274.

It is a happy number.

It is a super-4 number, since 4×472743311247666⁴ (a number of 60 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (472743311247661) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 434745055 + ... + 435831101.

It is an arithmetic number, because the mean of its divisors is an integer number (21639742072416).

Almost surely, 2^{472743311247666} is an apocalyptic number.

472743311247666 is an abundant number, since it is smaller than the sum of its proper divisors (565964308228302).

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

472743311247666 is a wasteful number, since it uses less digits than its factorization.

472743311247666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426727 (or 1426724 counting only the distinct ones).

The product of its digits is 170698752, while the sum is 63.

The spelling of 472743311247666 in words is "four hundred seventy-two trillion, seven hundred forty-three billion, three hundred eleven million, two hundred forty-seven thousand, six hundred sixty-six".