7080661872 has 160 divisors (see below), whose sum is σ = 21508623360. Its totient is φ = 2225583360.

The previous prime is 7080661871. The next prime is 7080661873. The reversal of 7080661872 is 2781660807.

It is an interprime number because it is at equal distance from previous prime (7080661871) and next prime (7080661873).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7080661871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 700438 + ... + 710474.

It is an arithmetic number, because the mean of its divisors is an integer number (134428896).

Almost surely, 2^7080661872 is an apocalyptic number.

7080661872 is a gapful number since it is divisible by the number (72) 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 7080661872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10754311680).

7080661872 is an abundant number, since it is smaller than the sum of its proper divisors (14427961488).

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

7080661872 is a wasteful number, since it uses less digits than its factorization.

7080661872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10148 (or 10136 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 7080661872 is about 84146.6688110706. The cubic root of 7080661872 is about 1920.2507875536.

The spelling of 7080661872 in words is "seven billion, eighty million, six hundred sixty-one thousand, eight hundred seventy-two".