7142161716 has 84 divisors (see below), whose sum is σ = 18836241732. Its totient is φ = 2368445184.

The previous prime is 7142161711. The next prime is 7142161721. The reversal of 7142161716 is 6171612417.

7142161716 is a `hidden beast` number, since 7 + 1 + 4 + 21 + 617 + 16 = 666.

It is an interprime number because it is at equal distance from previous prime (7142161711) and next prime (7142161721).

It can be written as a sum of positive squares in 2 ways, for example, as 4375822500 + 2766339216 = 66150^2 + 52596^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7142161711) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 568236 + ... + 580668.

It is an arithmetic number, because the mean of its divisors is an integer number (224240973).

Almost surely, 2^7142161716 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7142161716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9418120866).

7142161716 is an abundant number, since it is smaller than the sum of its proper divisors (11694080016).

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

7142161716 is a wasteful number, since it uses less digits than its factorization.

7142161716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12652 (or 12635 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 7142161716 is about 84511.3111719372. The cubic root of 7142161716 is about 1925.7942832076.

The spelling of 7142161716 in words is "seven billion, one hundred forty-two million, one hundred sixty-one thousand, seven hundred sixteen".