7161015720 has 64 divisors (see below), whose sum is σ = 22007039040. Its totient is φ = 1863027200.

The previous prime is 7161015671. The next prime is 7161015749. The reversal of 7161015720 is 275101617.

It is a super-2 number, since 2×7161015720² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 722826 + ... + 732665.

It is an arithmetic number, because the mean of its divisors is an integer number (343859985).

Almost surely, 2^7161015720 is an apocalyptic number.

It is an amenable number.

7161015720 is an abundant number, since it is smaller than the sum of its proper divisors (14846023320).

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

7161015720 is a wasteful number, since it uses less digits than its factorization.

7161015720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455546 (or 1455542 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 30.

The square root of 7161015720 is about 84622.7848749969. The cubic root of 7161015720 is about 1927.4873761245.

The spelling of 7161015720 in words is "seven billion, one hundred sixty-one million, fifteen thousand, seven hundred twenty".