7161573623736 has 128 divisors (see below), whose sum is σ = 20926483200000. Its totient is φ = 1999802345472.

The previous prime is 7161573623639. The next prime is 7161573623749. The reversal of 7161573623736 is 6373263751617.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4958640 + ... + 6237888.

It is an arithmetic number, because the mean of its divisors is an integer number (163488150000).

Almost surely, 2^{7161573623736} 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 7161573623736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10463241600000).

7161573623736 is an abundant number, since it is smaller than the sum of its proper divisors (13764909576264).

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

7161573623736 is a wasteful number, since it uses less digits than its factorization.

7161573623736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280021 (or 1280017 counting only the distinct ones).

The product of its digits is 20003760, while the sum is 57.

The spelling of 7161573623736 in words is "seven trillion, one hundred sixty-one billion, five hundred seventy-three million, six hundred twenty-three thousand, seven hundred thirty-six".