7121581169080 has 128 divisors (see below), whose sum is σ = 18837099348480. Its totient is φ = 2372721246720.

The previous prime is 7121581169077. The next prime is 7121581169081. The reversal of 7121581169080 is 809611851217.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7121581169081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1094134 + ... + 3929413.

It is an arithmetic number, because the mean of its divisors is an integer number (147164838660).

Almost surely, 2^{7121581169080} is an apocalyptic number.

7121581169080 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7121581169080 is an abundant number, since it is smaller than the sum of its proper divisors (11715518179400).

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

7121581169080 is a wasteful number, since it uses less digits than its factorization.

7121581169080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5023709 (or 5023705 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 49.

The spelling of 7121581169080 in words is "seven trillion, one hundred twenty-one billion, five hundred eighty-one million, one hundred sixty-nine thousand, eighty".