7115656390 has 16 divisors (see below), whose sum is σ = 12868887600. Its totient is φ = 2832772320.

The previous prime is 7115656381. The next prime is 7115656399. The reversal of 7115656390 is 936565117.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7115656381) and next prime (7115656399).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7115656399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1684065 + ... + 1688284.

It is an arithmetic number, because the mean of its divisors is an integer number (804305475).

Almost surely, 2^7115656390 is an apocalyptic number.

7115656390 is a deficient number, since it is larger than the sum of its proper divisors (5753231210).

7115656390 is a wasteful number, since it uses less digits than its factorization.

7115656390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3372567.

The product of its (nonzero) digits is 170100, while the sum is 43.

The square root of 7115656390 is about 84354.3501545712. The cubic root of 7115656390 is about 1923.4090539716.

The spelling of 7115656390 in words is "seven billion, one hundred fifteen million, six hundred fifty-six thousand, three hundred ninety".