1716471666 has 144 divisors (see below), whose sum is σ = 4904827200. Its totient is φ = 428815296.

The previous prime is 1716471661. The next prime is 1716471697. The reversal of 1716471666 is 6661746171.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1716471661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 213915 + ... + 221793.

It is an arithmetic number, because the mean of its divisors is an integer number (34061300).

Almost surely, 2^1716471666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1716471666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2452413600).

1716471666 is an abundant number, since it is smaller than the sum of its proper divisors (3188355534).

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

1716471666 is a wasteful number, since it uses less digits than its factorization.

1716471666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7933 (or 7923 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 1716471666 is about 41430.3230255329. The cubic root of 1716471666 is about 1197.3254475697.

The spelling of 1716471666 in words is "one billion, seven hundred sixteen million, four hundred seventy-one thousand, six hundred sixty-six".