7156640132 has 6 divisors (see below), whose sum is σ = 12524120238. Its totient is φ = 3578320064.

The previous prime is 7156640083. The next prime is 7156640137. The reversal of 7156640132 is 2310466517.

It can be written as a sum of positive squares in only one way, i.e., 5448801856 + 1707838276 = 73816^2 + 41326^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7156640092 and 7156640101.

It is not an unprimeable number, because it can be changed into a prime (7156640137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 894580013 + ... + 894580020.

It is an arithmetic number, because the mean of its divisors is an integer number (2087353373).

Almost surely, 2^7156640132 is an apocalyptic number.

It is an amenable number.

7156640132 is a deficient number, since it is larger than the sum of its proper divisors (5367480106).

7156640132 is a wasteful number, since it uses less digits than its factorization.

7156640132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1789160037 (or 1789160035 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 7156640132 is about 84596.9274382941. The cubic root of 7156640132 is about 1927.0947126007.

The spelling of 7156640132 in words is "seven billion, one hundred fifty-six million, six hundred forty thousand, one hundred thirty-two".