7158668516 has 12 divisors (see below), whose sum is σ = 13264591788. Its totient is φ = 3368785152.

The previous prime is 7158668483. The next prime is 7158668519. The reversal of 7158668516 is 6158668517.

It can be written as a sum of positive squares in 2 ways, for example, as 6052840000 + 1105828516 = 77800^2 + 33254^2 .

It is not an unprimeable number, because it can be changed into a prime (7158668519) 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, 52637201 + ... + 52637336.

It is an arithmetic number, because the mean of its divisors is an integer number (1105382649).

Almost surely, 2^7158668516 is an apocalyptic number.

It is an amenable number.

7158668516 is a deficient number, since it is larger than the sum of its proper divisors (6105923272).

7158668516 is a wasteful number, since it uses less digits than its factorization.

7158668516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105274558 (or 105274556 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 53.

The square root of 7158668516 is about 84608.9151094611. The cubic root of 7158668516 is about 1927.2767588670.

Subtracting from 7158668516 its reverse (6158668517), we obtain a palindrome (999999999).

The spelling of 7158668516 in words is "seven billion, one hundred fifty-eight million, six hundred sixty-eight thousand, five hundred sixteen".