7166712280 has 256 divisors, whose sum is σ = 20472238080. Its totient is φ = 2197684224.

The previous prime is 7166712269. The next prime is 7166712337. The reversal of 7166712280 is 822176617.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27885912 + ... + 27886168.

It is an arithmetic number, because the mean of its divisors is an integer number (79969680).

Almost surely, 2^7166712280 is an apocalyptic number.

7166712280 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7166712280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10236119040).

7166712280 is an abundant number, since it is smaller than the sum of its proper divisors (13305525800).

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

7166712280 is a wasteful number, since it uses less digits than its factorization.

7166712280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498 (or 494 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 7166712280 is about 84656.4367310602. The cubic root of 7166712280 is about 1927.9983435475.

Adding to 7166712280 its reverse (822176617), we get a palindrome (7988888897).

The spelling of 7166712280 in words is "seven billion, one hundred sixty-six million, seven hundred twelve thousand, two hundred eighty".