7151721060 has 96 divisors (see below), whose sum is σ = 21860237952. Its totient is φ = 1732561920.

The previous prime is 7151721053. The next prime is 7151721079. The reversal of 7151721060 is 601271517.

It is a super-2 number, since 2×7151721060² (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 polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1312662 + ... + 1318098.

It is an arithmetic number, because the mean of its divisors is an integer number (227710812).

Almost surely, 2^7151721060 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 7151721060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10930118976).

7151721060 is an abundant number, since it is smaller than the sum of its proper divisors (14708516892).

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

7151721060 is a wasteful number, since it uses less digits than its factorization.

7151721060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7453 (or 7451 counting only the distinct ones).

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

The square root of 7151721060 is about 84567.8488552239. The cubic root of 7151721060 is about 1926.6530858880.

Adding to 7151721060 its reverse (601271517), we get a palindrome (7752992577).

The spelling of 7151721060 in words is "seven billion, one hundred fifty-one million, seven hundred twenty-one thousand, sixty".