7161358720 has 32 divisors (see below), whose sum is σ = 17120124720. Its totient is φ = 2864543232.

The previous prime is 7161358709. The next prime is 7161358727. The reversal of 7161358720 is 278531617.

It is a tau number, because it is divible by the number of its divisors (32).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7161358727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5594172 + ... + 5595451.

Almost surely, 2^7161358720 is an apocalyptic number.

It is an amenable number.

7161358720 is an abundant number, since it is smaller than the sum of its proper divisors (9958766000).

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

7161358720 is a wasteful number, since it uses less digits than its factorization.

7161358720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11189642 (or 11189630 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 7161358720 is about 84624.8114916660. The cubic root of 7161358720 is about 1927.5181500464.

The spelling of 7161358720 in words is "seven billion, one hundred sixty-one million, three hundred fifty-eight thousand, seven hundred twenty".